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",[941,1035,1036],{"class":955},"\u003C\u003C",[941,1038,1004],{"class":1003},[941,1040,1027],{"class":955},[919,1042,1043],{},"需要替换成",[932,1045,1047],{"className":934,"code":1046,"language":936,"meta":937,"style":937},"int a = 42;\nscanf(\"%d\", &a);\nprintf(\"%d\", a);\n",[923,1048,1049,1064,1093],{"__ignoreMap":937},[941,1050,1051,1053,1056,1059,1062],{"class":943,"line":944},[941,1052,948],{"class":947},[941,1054,1055],{"class":1003}," a ",[941,1057,1058],{"class":955},"=",[941,1060,1061],{"class":1010}," 42",[941,1063,1027],{"class":955},[941,1065,1066,1069,1071,1074,1078,1080,1083,1086,1090],{"class":943,"line":971},[941,1067,1068],{"class":951},"scanf",[941,1070,956],{"class":955},[941,1072,1073],{"class":955},"\"",[941,1075,1077],{"class":1076},"swJcz","%d",[941,1079,1073],{"class":955},[941,1081,1082],{"class":955},",",[941,1084,1085],{"class":955}," &",[941,1087,1089],{"class":1088},"sHdIc","a",[941,1091,1092],{"class":955},");\n",[941,1094,1095,1098,1100,1102,1104,1106,1108,1110],{"class":943,"line":1030},[941,1096,1097],{"class":951},"printf",[941,1099,956],{"class":955},[941,1101,1073],{"class":955},[941,1103,1077],{"class":1076},[941,1105,1073],{"class":955},[941,1107,1082],{"class":955},[941,1109,1004],{"class":1003},[941,1111,1092],{"class":955},[1113,1114,1116,1117],"h2",{"id":1115},"输出printf","输出：",[923,1118,1097],{},[919,1120,1121,1122,1124,1125,1127],{},"首先，我们来看一下 ",[923,1123,1097],{}," 输出的用法。",[923,1126,1097],{}," 这个函数它的第一个参数是一个字符串（实际上是指针）。在默认情况下，程序会输出这个字符串的内容，比如：",[932,1129,1131],{"className":934,"code":1130,"language":936,"meta":937,"style":937},"printf(\"Hello, world!\");\n",[923,1132,1133],{"__ignoreMap":937},[941,1134,1135,1137,1139,1141,1145,1147],{"class":943,"line":944},[941,1136,1097],{"class":951},[941,1138,956],{"class":955},[941,1140,1073],{"class":955},[941,1142,1144],{"class":1143},"sfazB","Hello, world!",[941,1146,1073],{"class":955},[941,1148,1092],{"class":955},[919,1150,1151,1152,1154,1155,1158],{},"就会输出 ",[923,1153,1144],{},"。如果你要输出一个数，你就需要在输出数的位置上加上占位符（Placeholder）。比如，我想输出 ",[923,1156,1157],{},"Hello 42","，就需要这样做：",[932,1160,1162],{"className":934,"code":1161,"language":936,"meta":937,"style":937},"printf(\"Hello %d\", 42);\n",[923,1163,1164],{"__ignoreMap":937},[941,1165,1166,1168,1170,1172,1175,1177,1179,1181,1183],{"class":943,"line":944},[941,1167,1097],{"class":951},[941,1169,956],{"class":955},[941,1171,1073],{"class":955},[941,1173,1174],{"class":1143},"Hello ",[941,1176,1077],{"class":1076},[941,1178,1073],{"class":955},[941,1180,1082],{"class":955},[941,1182,1061],{"class":1010},[941,1184,1092],{"class":955},[919,1186,1187,1188,1190],{},"其中，",[923,1189,1077],{}," 表示这里应该输出一个整数。输出哪个整数呢？这个值应当在后面的第二参数提供。类似地，你可以输出两个、三个整数：",[932,1192,1194],{"className":934,"code":1193,"language":936,"meta":937,"style":937},"printf(\"The sum of %d and %d is %d\", a, b, a + b);\n",[923,1195,1196],{"__ignoreMap":937},[941,1197,1198,1200,1202,1204,1207,1209,1212,1214,1217,1219,1221,1223,1225,1227,1230,1232,1234,1237,1239],{"class":943,"line":944},[941,1199,1097],{"class":951},[941,1201,956],{"class":955},[941,1203,1073],{"class":955},[941,1205,1206],{"class":1143},"The sum of ",[941,1208,1077],{"class":1076},[941,1210,1211],{"class":1143}," and ",[941,1213,1077],{"class":1076},[941,1215,1216],{"class":1143}," is ",[941,1218,1077],{"class":1076},[941,1220,1073],{"class":955},[941,1222,1082],{"class":955},[941,1224,1004],{"class":1003},[941,1226,1082],{"class":955},[941,1228,1229],{"class":1003}," b",[941,1231,1082],{"class":955},[941,1233,1055],{"class":1003},[941,1235,1236],{"class":955},"+",[941,1238,1229],{"class":1003},[941,1240,1092],{"class":955},[919,1242,1243,1244,1246,1247,1249,1250,1252,1253,1256,1257,1252,1260,1263,1264,1267],{},"这里面提供了三个 ",[923,1245,1077],{}," 占位符，它们分别对应 ",[923,1248,1097],{}," 后面的第二、第三、第四个参数。这时，如果 ",[923,1251,1089],{}," 为 ",[923,1254,1255],{},"1","，",[923,1258,1259],{},"b",[923,1261,1262],{},"2"," ，就会输出 ",[923,1265,1266],{},"The sum of 1 and 2 is 3","。",[919,1269,1270,1271,1273,1274,1276,1277,1280,1281,1284],{},"C 语言没有判断参数类型的能力，所以你需要通过占位符来指定输出内容的类型。比如，刚刚 ",[923,1272,1077],{}," 表示这里应当输出 ",[923,1275,948],{}," 类型的值。类似地，",[923,1278,1279],{},"%f"," 表示输出 ",[923,1282,1283],{},"double"," 类型的值。",[919,1286,1287],{},"常用类型的占位符分别是：",[1289,1290,1291,1304],"table",{},[1292,1293,1294],"thead",{},[1295,1296,1297,1301],"tr",{},[1298,1299,1300],"th",{},"类型",[1298,1302,1303],{},"占位符",[1305,1306,1307,1318,1330,1342,1358,1370,1382,1394,1408,1418,1430,1439,1453],"tbody",{},[1295,1308,1309,1314],{},[1310,1311,1312],"td",{},[923,1313,948],{},[1310,1315,1316],{},[923,1317,1077],{},[1295,1319,1320,1325],{},[1310,1321,1322],{},[923,1323,1324],{},"short",[1310,1326,1327],{},[923,1328,1329],{},"%hd",[1295,1331,1332,1337],{},[1310,1333,1334],{},[923,1335,1336],{},"long",[1310,1338,1339],{},[923,1340,1341],{},"%ld",[1295,1343,1344,1353],{},[1310,1345,1346,1349],{},[923,1347,1348],{},"long long",[1350,1351,1352],"sup",{},"※",[1310,1354,1355],{},[923,1356,1357],{},"%lld",[1295,1359,1360,1365],{},[1310,1361,1362],{},[923,1363,1364],{},"unsigned int",[1310,1366,1367],{},[923,1368,1369],{},"%u",[1295,1371,1372,1377],{},[1310,1373,1374],{},[923,1375,1376],{},"unsigned short",[1310,1378,1379],{},[923,1380,1381],{},"%hu",[1295,1383,1384,1389],{},[1310,1385,1386],{},[923,1387,1388],{},"unsigned long",[1310,1390,1391],{},[923,1392,1393],{},"%lu",[1295,1395,1396,1403],{},[1310,1397,1398,1401],{},[923,1399,1400],{},"unsigned long long",[1350,1402,1352],{},[1310,1404,1405],{},[923,1406,1407],{},"%llu",[1295,1409,1410,1414],{},[1310,1411,1412],{},[923,1413,1283],{},[1310,1415,1416],{},[923,1417,1279],{},[1295,1419,1420,1425],{},[1310,1421,1422],{},[923,1423,1424],{},"long double",[1310,1426,1427],{},[923,1428,1429],{},"%Lf",[1295,1431,1432,1434],{},[1310,1433,138],{},[1310,1435,1436],{},[923,1437,1438],{},"%c",[1295,1440,1441,1448],{},[1310,1442,1443,1444,1447],{},"指针类型（",[923,1445,1446],{},"void*","）",[1310,1449,1450],{},[923,1451,1452],{},"%p",[1295,1454,1455,1461],{},[1310,1456,1457,1458,1447],{},"字符串（",[923,1459,1460],{},"char*",[1310,1462,1463],{},[923,1464,1465],{},"%s",[919,1467,1468],{},[1469,1470,1471],"small",{},"※ C99 起",[919,1473,1474],{},"除此之外，还有这些占位符：",[1289,1476,1477,1486],{},[1292,1478,1479],{},[1295,1480,1481,1483],{},[1298,1482,1303],{},[1298,1484,1485],{},"含义",[1305,1487,1488,1517,1541,1551,1568,1577,1595,1606,1621,1634],{},[1295,1489,1490,1495],{},[1310,1491,1492],{},[923,1493,1494],{},"%o",[1310,1496,1497,1498,1502,1503,1505,1506,1509,1510,1509,1513,1516],{},"以",[1499,1500,1501],"strong",{},"八进制","输出 ",[923,1504,1364],{}," ，类似地有 ",[923,1507,1508],{},"%ho"," ",[923,1511,1512],{},"%lo",[923,1514,1515],{},"%llo"," （含义同上）",[1295,1518,1519,1524],{},[1310,1520,1521],{},[923,1522,1523],{},"%x",[1310,1525,1497,1526,1502,1529,1531,1532,1509,1535,1509,1538],{},[1499,1527,1528],{},"十六进制",[923,1530,1364],{},"，类似地有 ",[923,1533,1534],{},"%hx",[923,1536,1537],{},"%lx",[923,1539,1540],{},"%llx",[1295,1542,1543,1548],{},[1310,1544,1545],{},[923,1546,1547],{},"%X",[1310,1549,1550],{},"同上；但字母大写",[1295,1552,1553,1558],{},[1310,1554,1555],{},[923,1556,1557],{},"%e",[1310,1559,1497,1560,1502,1563,1531,1565],{},[1499,1561,1562],{},"科学记数法",[923,1564,1283],{},[923,1566,1567],{},"%Le",[1295,1569,1570,1575],{},[1310,1571,1572],{},[923,1573,1574],{},"%E",[1310,1576,1550],{},[1295,1578,1579,1586],{},[1310,1580,1581,1584],{},[923,1582,1583],{},"%a",[1350,1585,1352],{},[1310,1587,1497,1588,1502,1590,1531,1592],{},[1499,1589,1528],{},[923,1591,1283],{},[923,1593,1594],{},"%La",[1295,1596,1597,1604],{},[1310,1598,1599,1602],{},[923,1600,1601],{},"%A",[1350,1603,1352],{},[1310,1605,1550],{},[1295,1607,1608,1613],{},[1310,1609,1610],{},[923,1611,1612],{},"%g",[1310,1614,1615,1616,926,1618,1620],{},"取 ",[923,1617,1279],{},[923,1619,1557],{}," 中较短者输出",[1295,1622,1623,1628],{},[1310,1624,1625],{},[923,1626,1627],{},"%G",[1310,1629,1615,1630,926,1632,1620],{},[923,1631,1279],{},[923,1633,1574],{},[1295,1635,1636,1641],{},[1310,1637,1638],{},[923,1639,1640],{},"%%",[1310,1642,1502,1643],{},[923,1644,1645],{},"%",[919,1647,1648],{},[1469,1649,1471],{},[919,1651,1652,1653,1655,1656,1660,1661,926,1664,1667],{},"除此之外，在 ",[923,1654,1645],{}," 后面可以可选地依次加上 ",[1657,1658,1659],"em",{},"修饰","、",[1657,1662,1663],{},"宽度",[1657,1665,1666],{},"精度"," 的限制，即。",[1669,1670,1671],"sdsc",{},[919,1672,1673,1674,1509,1676,1509,1678,1681],{},"\"%\"修饰 ",[941,1675,1663],{},[941,1677,1666],{},[941,1679,1680],{},"h\u002Fl\u002Fll\u002FL"," 上述占位符",[919,1683,1684],{},"其中：",[1686,1687,1688,1747,1772],"ul",{},[1689,1690,1691,1693,1694],"li",{},[1657,1692,1659],{}," 是如下字符之一：\n",[1686,1695,1696,1702,1707,1712,1736],{},[1689,1697,1698,1701],{},[923,1699,1700],{},"-","：指明输出左对齐（见下）",[1689,1703,1704,1706],{},[923,1705,1236],{},"：强制输出正号",[1689,1708,1709,1711],{},[923,1710,1509],{},"：强制正数多输出一个空格（从而与负号对齐）",[1689,1713,1714,1717,1718],{},[923,1715,1716],{},"#","：调整输出格式：\n",[1686,1719,1720,1733],{},[1689,1721,1722,1723,1509,1726,1509,1729,1732],{},"对于整型，输出 ",[923,1724,1725],{},"0",[923,1727,1728],{},"0x",[923,1730,1731],{},"0X"," 前缀；",[1689,1734,1735],{},"对于浮点类型，强制输出小数点",[1689,1737,1738,1740,1741,1743,1744,1746],{},[923,1739,1725],{},"：用 ",[923,1742,1725],{}," 而非 ",[923,1745,1509],{}," 作为补齐字符",[1689,1748,1749,1751,1752],{},[1657,1750,1663],{}," 是如下之一：\n",[1686,1753,1754,1760],{},[1689,1755,1756,1757,1759],{},"整数：指定输出的最小宽度；默认左侧补齐空格（此行为可通过 ",[1657,1758,1659],{}," 改变）",[1689,1761,1762,1765,1766,1768,1769,1771],{},[923,1763,1764],{},"*"," 字符：",[1657,1767,1663],{}," 由该占位符对应参数前的一个额外 ",[923,1770,948],{}," 参数提供",[1689,1773,1774,1751,1776],{},[1657,1775,1666],{},[1686,1777,1778,1812],{},[1689,1779,1780,1783,1784],{},[923,1781,1782],{},"@\".\"整数@","：\n",[1686,1785,1786,1793,1798,1809],{},[1689,1787,1788,1789,1792],{},"对于整型，指定最小位数为 ",[923,1790,1791],{},"@整数@","；",[1689,1794,1795,1796,1792],{},"对于浮点类型，指定小数点后位数为 ",[923,1797,1791],{},[1689,1799,1800,1801,1803,1804,1806,1807,1792],{},"对于 ",[923,1802,1612],{}," 或 ",[923,1805,1627],{}," 等，指定最大有效数字个数为 ",[923,1808,1791],{},[1689,1810,1811],{},"对于字符串，指定最大输出字符个数",[1689,1813,1814,1817,1818,1768,1820,1771],{},[923,1815,1816],{},".*","：",[1657,1819,1666],{},[923,1821,948],{},[919,1823,1824],{},"例：",[932,1826,1828],{"className":934,"code":1827,"language":936,"meta":937,"style":937},"#include \u003Cstdio.h>\nint main(void) {\n    printf(\"Strings:\\n\");\n    const char* s = \"Hello\";\n    printf(\".%10s.\\n.%-10s.\\n.%*s.\\n\", s, s, 10, s);\n\n    printf(\"Characters:     %c %%\\n\", 65); \u002F* 65: 'A' *\u002F\n\n    printf(\"Integers\\n\");\n    printf(\"Decimal:        %i %d %.6i %i %.0i %+i %u\\n\", 1, 2, 3, 0, 0, 4, -1);\n    printf(\"Hexadecimal:    %x %x %X %#x\\n\", 5, 10, 10, 6);\n    printf(\"Octal:          %o %#o %#o\\n\", 10, 10, 4);\n\n    printf(\"Floating point\\n\");\n    printf(\"Rounding:       %f %.0f %.32f\\n\", 1.5, 1.5, 1.3);\n    printf(\"Padding:        %05.2f %.2f %5.2f\\n\", 1.5, 1.5, 1.5);\n    printf(\"Scientific:     %E %e\\n\", 1.5, 1.5);\n    printf(\"Hexadecimal:    %a %A\\n\", 1.5, 1.5);\n    return 0;\n}\n",[923,1829,1830,1845,1863,1882,1907,1966,1973,2006,2011,2029,2104,2151,2188,2193,2211,2251,2290,2321,2351,2361],{"__ignoreMap":937},[941,1831,1832,1836,1839,1842],{"class":943,"line":944},[941,1833,1835],{"class":1834},"s7zQu","#include",[941,1837,1838],{"class":955}," \u003C",[941,1840,1841],{"class":1143},"stdio.h",[941,1843,1844],{"class":955},">\n",[941,1846,1847,1849,1852,1854,1857,1860],{"class":943,"line":971},[941,1848,948],{"class":947},[941,1850,1851],{"class":951}," main",[941,1853,956],{"class":955},[941,1855,1856],{"class":947},"void",[941,1858,1859],{"class":955},")",[941,1861,1862],{"class":955}," {\n",[941,1864,1865,1868,1870,1872,1875,1878,1880],{"class":943,"line":1030},[941,1866,1867],{"class":951},"    printf",[941,1869,956],{"class":955},[941,1871,1073],{"class":955},[941,1873,1874],{"class":1143},"Strings:",[941,1876,1877],{"class":1003},"\\n",[941,1879,1073],{"class":955},[941,1881,1092],{"class":955},[941,1883,1885,1888,1890,1892,1895,1897,1900,1903,1905],{"class":943,"line":1884},4,[941,1886,1887],{"class":947},"    const",[941,1889,962],{"class":947},[941,1891,1764],{"class":955},[941,1893,1894],{"class":1076}," s ",[941,1896,1058],{"class":955},[941,1898,1899],{"class":955}," \"",[941,1901,1902],{"class":1143},"Hello",[941,1904,1073],{"class":955},[941,1906,1027],{"class":955},[941,1908,1910,1912,1914,1916,1919,1922,1924,1926,1928,1931,1933,1935,1937,1940,1942,1944,1946,1948,1951,1953,1955,1957,1960,1962,1964],{"class":943,"line":1909},5,[941,1911,1867],{"class":951},[941,1913,956],{"class":955},[941,1915,1073],{"class":955},[941,1917,1918],{"class":1143},".",[941,1920,1921],{"class":1076},"%10s",[941,1923,1918],{"class":1143},[941,1925,1877],{"class":1003},[941,1927,1918],{"class":1143},[941,1929,1930],{"class":1076},"%-10s",[941,1932,1918],{"class":1143},[941,1934,1877],{"class":1003},[941,1936,1918],{"class":1143},[941,1938,1939],{"class":1076},"%*s",[941,1941,1918],{"class":1143},[941,1943,1877],{"class":1003},[941,1945,1073],{"class":955},[941,1947,1082],{"class":955},[941,1949,1950],{"class":1076}," s",[941,1952,1082],{"class":955},[941,1954,1950],{"class":1076},[941,1956,1082],{"class":955},[941,1958,1959],{"class":1010}," 10",[941,1961,1082],{"class":955},[941,1963,1950],{"class":1076},[941,1965,1092],{"class":955},[941,1967,1969],{"class":943,"line":1968},6,[941,1970,1972],{"emptyLinePlaceholder":1971},true,"\n",[941,1974,1976,1978,1980,1982,1985,1987,1990,1992,1994,1996,1999,2002],{"class":943,"line":1975},7,[941,1977,1867],{"class":951},[941,1979,956],{"class":955},[941,1981,1073],{"class":955},[941,1983,1984],{"class":1143},"Characters:     ",[941,1986,1438],{"class":1076},[941,1988,1989],{"class":1076}," %%",[941,1991,1877],{"class":1003},[941,1993,1073],{"class":955},[941,1995,1082],{"class":955},[941,1997,1998],{"class":1010}," 65",[941,2000,2001],{"class":955},");",[941,2003,2005],{"class":2004},"sHwdD"," \u002F* 65: 'A' *\u002F\n",[941,2007,2009],{"class":943,"line":2008},8,[941,2010,1972],{"emptyLinePlaceholder":1971},[941,2012,2014,2016,2018,2020,2023,2025,2027],{"class":943,"line":2013},9,[941,2015,1867],{"class":951},[941,2017,956],{"class":955},[941,2019,1073],{"class":955},[941,2021,2022],{"class":1143},"Integers",[941,2024,1877],{"class":1003},[941,2026,1073],{"class":955},[941,2028,1092],{"class":955},[941,2030,2032,2034,2036,2038,2041,2044,2047,2050,2053,2056,2059,2062,2064,2066,2068,2071,2073,2076,2078,2081,2083,2086,2088,2090,2092,2095,2097,2100,2102],{"class":943,"line":2031},10,[941,2033,1867],{"class":951},[941,2035,956],{"class":955},[941,2037,1073],{"class":955},[941,2039,2040],{"class":1143},"Decimal:        ",[941,2042,2043],{"class":1076},"%i",[941,2045,2046],{"class":1076}," %d",[941,2048,2049],{"class":1076}," %.6i",[941,2051,2052],{"class":1076}," %i",[941,2054,2055],{"class":1076}," %.0i",[941,2057,2058],{"class":1076}," %+i",[941,2060,2061],{"class":1076}," %u",[941,2063,1877],{"class":1003},[941,2065,1073],{"class":955},[941,2067,1082],{"class":955},[941,2069,2070],{"class":1010}," 1",[941,2072,1082],{"class":955},[941,2074,2075],{"class":1010}," 2",[941,2077,1082],{"class":955},[941,2079,2080],{"class":1010}," 3",[941,2082,1082],{"class":955},[941,2084,2085],{"class":1010}," 0",[941,2087,1082],{"class":955},[941,2089,2085],{"class":1010},[941,2091,1082],{"class":955},[941,2093,2094],{"class":1010}," 4",[941,2096,1082],{"class":955},[941,2098,2099],{"class":955}," -",[941,2101,1255],{"class":1010},[941,2103,1092],{"class":955},[941,2105,2107,2109,2111,2113,2116,2118,2121,2124,2127,2129,2131,2133,2136,2138,2140,2142,2144,2146,2149],{"class":943,"line":2106},11,[941,2108,1867],{"class":951},[941,2110,956],{"class":955},[941,2112,1073],{"class":955},[941,2114,2115],{"class":1143},"Hexadecimal:    ",[941,2117,1523],{"class":1076},[941,2119,2120],{"class":1076}," %x",[941,2122,2123],{"class":1076}," %X",[941,2125,2126],{"class":1076}," %#x",[941,2128,1877],{"class":1003},[941,2130,1073],{"class":955},[941,2132,1082],{"class":955},[941,2134,2135],{"class":1010}," 5",[941,2137,1082],{"class":955},[941,2139,1959],{"class":1010},[941,2141,1082],{"class":955},[941,2143,1959],{"class":1010},[941,2145,1082],{"class":955},[941,2147,2148],{"class":1010}," 6",[941,2150,1092],{"class":955},[941,2152,2154,2156,2158,2160,2163,2165,2168,2170,2172,2174,2176,2178,2180,2182,2184,2186],{"class":943,"line":2153},12,[941,2155,1867],{"class":951},[941,2157,956],{"class":955},[941,2159,1073],{"class":955},[941,2161,2162],{"class":1143},"Octal:          ",[941,2164,1494],{"class":1076},[941,2166,2167],{"class":1076}," %#o",[941,2169,2167],{"class":1076},[941,2171,1877],{"class":1003},[941,2173,1073],{"class":955},[941,2175,1082],{"class":955},[941,2177,1959],{"class":1010},[941,2179,1082],{"class":955},[941,2181,1959],{"class":1010},[941,2183,1082],{"class":955},[941,2185,2094],{"class":1010},[941,2187,1092],{"class":955},[941,2189,2191],{"class":943,"line":2190},13,[941,2192,1972],{"emptyLinePlaceholder":1971},[941,2194,2196,2198,2200,2202,2205,2207,2209],{"class":943,"line":2195},14,[941,2197,1867],{"class":951},[941,2199,956],{"class":955},[941,2201,1073],{"class":955},[941,2203,2204],{"class":1143},"Floating point",[941,2206,1877],{"class":1003},[941,2208,1073],{"class":955},[941,2210,1092],{"class":955},[941,2212,2214,2216,2218,2220,2223,2225,2228,2231,2233,2235,2237,2240,2242,2244,2246,2249],{"class":943,"line":2213},15,[941,2215,1867],{"class":951},[941,2217,956],{"class":955},[941,2219,1073],{"class":955},[941,2221,2222],{"class":1143},"Rounding:       ",[941,2224,1279],{"class":1076},[941,2226,2227],{"class":1076}," %.0f",[941,2229,2230],{"class":1076}," %.32f",[941,2232,1877],{"class":1003},[941,2234,1073],{"class":955},[941,2236,1082],{"class":955},[941,2238,2239],{"class":1010}," 1.5",[941,2241,1082],{"class":955},[941,2243,2239],{"class":1010},[941,2245,1082],{"class":955},[941,2247,2248],{"class":1010}," 1.3",[941,2250,1092],{"class":955},[941,2252,2254,2256,2258,2260,2263,2266,2269,2272,2274,2276,2278,2280,2282,2284,2286,2288],{"class":943,"line":2253},16,[941,2255,1867],{"class":951},[941,2257,956],{"class":955},[941,2259,1073],{"class":955},[941,2261,2262],{"class":1143},"Padding:        ",[941,2264,2265],{"class":1076},"%05.2f",[941,2267,2268],{"class":1076}," %.2f",[941,2270,2271],{"class":1076}," %5.2f",[941,2273,1877],{"class":1003},[941,2275,1073],{"class":955},[941,2277,1082],{"class":955},[941,2279,2239],{"class":1010},[941,2281,1082],{"class":955},[941,2283,2239],{"class":1010},[941,2285,1082],{"class":955},[941,2287,2239],{"class":1010},[941,2289,1092],{"class":955},[941,2291,2293,2295,2297,2299,2302,2304,2307,2309,2311,2313,2315,2317,2319],{"class":943,"line":2292},17,[941,2294,1867],{"class":951},[941,2296,956],{"class":955},[941,2298,1073],{"class":955},[941,2300,2301],{"class":1143},"Scientific:     ",[941,2303,1574],{"class":1076},[941,2305,2306],{"class":1076}," %e",[941,2308,1877],{"class":1003},[941,2310,1073],{"class":955},[941,2312,1082],{"class":955},[941,2314,2239],{"class":1010},[941,2316,1082],{"class":955},[941,2318,2239],{"class":1010},[941,2320,1092],{"class":955},[941,2322,2324,2326,2328,2330,2332,2334,2337,2339,2341,2343,2345,2347,2349],{"class":943,"line":2323},18,[941,2325,1867],{"class":951},[941,2327,956],{"class":955},[941,2329,1073],{"class":955},[941,2331,2115],{"class":1143},[941,2333,1583],{"class":1076},[941,2335,2336],{"class":1076}," %A",[941,2338,1877],{"class":1003},[941,2340,1073],{"class":955},[941,2342,1082],{"class":955},[941,2344,2239],{"class":1010},[941,2346,1082],{"class":955},[941,2348,2239],{"class":1010},[941,2350,1092],{"class":955},[941,2352,2354,2357,2359],{"class":943,"line":2353},19,[941,2355,2356],{"class":1834},"    return",[941,2358,2085],{"class":1010},[941,2360,1027],{"class":955},[941,2362,2364],{"class":943,"line":2363},20,[941,2365,2366],{"class":955},"}\n",[919,2368,1116],{},[2370,2371,2372],"io-block",{},[919,2373,2374],{},"Strings:\n.     Hello.\n.Hello     .\n.     Hello.\nCharacters:     A %\nIntegers\nDecimal:        1 2 000003 0  +4 4294967295\nHexadecimal:    5 a A 0x6\nOctal:          12 012 04\nFloating point\nRounding:       1.500000 2 1.30000000000000004440892098500626\nPadding:        01.50 1.50  1.50\nScientific:     1.500000E+00 1.500000e+00\nHexadecimal:    0x1.8p+0 0X1.8P+0",[1113,2376,2378,2379],{"id":2377},"输入scanf","输入：",[923,2380,1068],{},[919,2382,2383,2384,2386],{},"在日常的使用中，输入函数 ",[923,2385,1068],{}," 相对比较容易。它同样使用占位符的语法，比如：",[932,2388,2390],{"className":934,"code":2389,"language":936,"meta":937,"style":937},"int a;\nscanf(\"%d\", &a);\n",[923,2391,2392,2400],{"__ignoreMap":937},[941,2393,2394,2396,2398],{"class":943,"line":944},[941,2395,948],{"class":947},[941,2397,1004],{"class":1003},[941,2399,1027],{"class":955},[941,2401,2402,2404,2406,2408,2410,2412,2414,2416,2418],{"class":943,"line":971},[941,2403,1068],{"class":951},[941,2405,956],{"class":955},[941,2407,1073],{"class":955},[941,2409,1077],{"class":1076},[941,2411,1073],{"class":955},[941,2413,1082],{"class":955},[941,2415,1085],{"class":955},[941,2417,1089],{"class":1088},[941,2419,1092],{"class":955},[919,2421,2422,2423,2425,2426,2428,2429,1509,2431,2434,2435,2437,2438,2441,2442,2444],{},"中，",[923,2424,1077],{}," 指明这里期望输入一个 ",[923,2427,948],{}," 类型的值。需要注意的是，",[923,2430,1068],{},[1499,2432,2433],{},"后面的参数需要是地址","，所以我们将变量 ",[923,2436,1089],{}," 的地址 ",[923,2439,2440],{},"&a"," 放了进去。当执行 ",[923,2443,1068],{}," 时，程序将读取到的值放在这个地址所指定的位置上。",[2446,2447,2448],"blockquote",{},[919,2449,2450],{},"需要取地址是因为 C 语言没有引用导致的。",[919,2452,2453],{},"类似地，如果要输入两个数，则",[932,2455,2457],{"className":934,"code":2456,"language":936,"meta":937,"style":937},"int a, b;\nscanf(\"%d%d\", &a, &b); \u002F* 即 C++ 中的 cin>>a>>b; *\u002F\n",[923,2458,2459,2471],{"__ignoreMap":937},[941,2460,2461,2463,2465,2467,2469],{"class":943,"line":944},[941,2462,948],{"class":947},[941,2464,1004],{"class":1003},[941,2466,1082],{"class":955},[941,2468,1229],{"class":1003},[941,2470,1027],{"class":955},[941,2472,2473,2475,2477,2479,2482,2484,2486,2488,2490,2492,2494,2496,2498],{"class":943,"line":971},[941,2474,1068],{"class":951},[941,2476,956],{"class":955},[941,2478,1073],{"class":955},[941,2480,2481],{"class":1076},"%d%d",[941,2483,1073],{"class":955},[941,2485,1082],{"class":955},[941,2487,1085],{"class":955},[941,2489,1089],{"class":1088},[941,2491,1082],{"class":955},[941,2493,1085],{"class":955},[941,2495,1259],{"class":1088},[941,2497,2001],{"class":955},[941,2499,2500],{"class":2004}," \u002F* 即 C++ 中的 cin>>a>>b; *\u002F\n",[919,2502,2503,2504,2506],{},"这样写。这时，它们处理输入的规则与 ",[923,2505,925],{}," 是类似的：遇到空白字符停止此次读入并忽略它们，直至下一次读取。",[919,2508,2509,2510,2512,2513,2515],{},"和 ",[923,2511,1097],{}," 类似，",[923,2514,1068],{}," 接受以下占位符：",[1289,2517,2518,2527],{},[1292,2519,2520],{},[1295,2521,2522,2524],{},[1298,2523,1303],{},[1298,2525,2526],{},"对应参数类型",[1305,2528,2529,2540,2551,2562,2575,2586,2597,2608,2621,2632,2644,2655,2665],{},[1295,2530,2531,2535],{},[1310,2532,2533],{},[923,2534,1077],{},[1310,2536,2537],{},[923,2538,2539],{},"int*",[1295,2541,2542,2546],{},[1310,2543,2544],{},[923,2545,1329],{},[1310,2547,2548],{},[923,2549,2550],{},"short*",[1295,2552,2553,2557],{},[1310,2554,2555],{},[923,2556,1341],{},[1310,2558,2559],{},[923,2560,2561],{},"long*",[1295,2563,2564,2570],{},[1310,2565,2566,1509,2568],{},[923,2567,1357],{},[1350,2569,1352],{},[1310,2571,2572],{},[923,2573,2574],{},"long long*",[1295,2576,2577,2581],{},[1310,2578,2579],{},[923,2580,1369],{},[1310,2582,2583],{},[923,2584,2585],{},"unsigned int*",[1295,2587,2588,2592],{},[1310,2589,2590],{},[923,2591,1381],{},[1310,2593,2594],{},[923,2595,2596],{},"unsigned short*",[1295,2598,2599,2603],{},[1310,2600,2601],{},[923,2602,1393],{},[1310,2604,2605],{},[923,2606,2607],{},"unsigned long*",[1295,2609,2610,2616],{},[1310,2611,2612,1509,2614],{},[923,2613,1407],{},[1350,2615,1352],{},[1310,2617,2618],{},[923,2619,2620],{},"unsigned long long*",[1295,2622,2623,2627],{},[1310,2624,2625],{},[923,2626,1279],{},[1310,2628,2629],{},[923,2630,2631],{},"float*",[1295,2633,2634,2639],{},[1310,2635,2636],{},[923,2637,2638],{},"%lf",[1310,2640,2641],{},[923,2642,2643],{},"double*",[1295,2645,2646,2650],{},[1310,2647,2648],{},[923,2649,1429],{},[1310,2651,2652],{},[923,2653,2654],{},"long double*",[1295,2656,2657,2661],{},[1310,2658,2659],{},[923,2660,1438],{},[1310,2662,2663],{},[923,2664,1460],{},[1295,2666,2667,2671],{},[1310,2668,2669],{},[923,2670,1465],{},[1310,2672,1457,2673,2675],{},[923,2674,1460],{},"，见下文）",[919,2677,2678],{},[1469,2679,1471],{},[919,2681,1187,2682,2684],{},[923,2683,1465],{}," 较为特殊。它常见的用法是：",[932,2686,2688],{"className":934,"code":2687,"language":936,"meta":937,"style":937},"char a[30] = {};\nscanf(\"%s\", a);\n",[923,2689,2690,2712],{"__ignoreMap":937},[941,2691,2692,2695,2697,2700,2703,2706,2709],{"class":943,"line":944},[941,2693,2694],{"class":947},"char",[941,2696,1004],{"class":1003},[941,2698,2699],{"class":955},"[",[941,2701,2702],{"class":1010},"30",[941,2704,2705],{"class":955},"]",[941,2707,2708],{"class":955}," =",[941,2710,2711],{"class":955}," {};\n",[941,2713,2714,2716,2718,2720,2722,2724,2726,2728],{"class":943,"line":971},[941,2715,1068],{"class":951},[941,2717,956],{"class":955},[941,2719,1073],{"class":955},[941,2721,1465],{"class":1076},[941,2723,1073],{"class":955},[941,2725,1082],{"class":955},[941,2727,1004],{"class":1003},[941,2729,1092],{"class":955},[919,2731,2732,2733,1615,2736,2738,2739,2741,2742,2745,2746,2748,2749,2751,2752,2754,2755,1267],{},"注意这里",[1499,2734,2735],{},"无需",[923,2737,1089],{}," 的地址：因为数组 ",[923,2740,1089],{}," 将转换为指向首元素 ",[923,2743,2744],{},"a[0]"," 的 ",[923,2747,1460],{}," 类型指针，这正是 ",[923,2750,1465],{}," 占位符所期望的。当使用 ",[923,2753,1465],{}," 时，程序会将读取到的字符挨个放在以参数地址为首的连续内存中，直至空白字符为止，并在最后追加 ",[923,2756,2757],{},"'\\0'",[919,2759,2760,2761,2763],{},"类似地，",[923,2762,1068],{}," 还接受以下占位符：",[1289,2765,2766,2774],{},[1292,2767,2768],{},[1295,2769,2770,2772],{},[1298,2771,1303],{},[1298,2773,1485],{},[1305,2775,2776,2796,2817],{},[1295,2777,2778,2782],{},[1310,2779,2780],{},[923,2781,1494],{},[1310,2783,2784,2785,2787,2788,1505,2790,1509,2792,1509,2794],{},"期望",[1499,2786,1501],{},"输入到 ",[923,2789,2585],{},[923,2791,1508],{},[923,2793,1512],{},[923,2795,1515],{},[1295,2797,2798,2805],{},[1310,2799,2800,2802,2803],{},[923,2801,1523],{}," \u002F ",[923,2804,1547],{},[1310,2806,2784,2807,2787,2809,1531,2811,1509,2813,1509,2815],{},[1499,2808,1528],{},[923,2810,2585],{},[923,2812,1534],{},[923,2814,1537],{},[923,2816,1540],{},[1295,2818,2819,2823],{},[1310,2820,2821],{},[923,2822,2043],{},[1310,2824,2825,2826,2829,2830,1531,2832,1509,2835,1509,2838],{},"通过前缀",[1499,2827,2828],{},"推测","进制，并输入到 ",[923,2831,2539],{},[923,2833,2834],{},"%hi",[923,2836,2837],{},"%li",[923,2839,2840],{},"%lli",[919,2842,2843,2845],{},[923,2844,1068],{}," 还接受匹配语法。比如",[932,2847,2849],{"className":934,"code":2848,"language":936,"meta":937,"style":937},"scanf(\"%d,%d\", &a, &b);\n",[923,2850,2851],{"__ignoreMap":937},[941,2852,2853,2855,2857,2859,2861,2863,2865,2867,2869,2871,2873,2875,2877,2879],{"class":943,"line":944},[941,2854,1068],{"class":951},[941,2856,956],{"class":955},[941,2858,1073],{"class":955},[941,2860,1077],{"class":1076},[941,2862,1082],{"class":1143},[941,2864,1077],{"class":1076},[941,2866,1073],{"class":955},[941,2868,1082],{"class":955},[941,2870,1085],{"class":955},[941,2872,1089],{"class":1088},[941,2874,1082],{"class":955},[941,2876,1085],{"class":955},[941,2878,1259],{"class":1088},[941,2880,1092],{"class":955},[919,2882,2883],{},"期望形如“逗号分隔的两个整数”这样的输入；若未能得到这样的输入，则导致输入失败（见下文）。",[2446,2885,2886],{},[919,2887,2888,2890,2891,2894,2895,2897,2898,2900,2901,2903,2904,2906,2907,2909,2910,2912,2913,2915,2916,2918],{},[923,2889,1068],{}," 还提供了类正则的语法，提供形如 ",[923,2892,2893],{},"%[0-9]"," 的占位符（实现定义）。",[923,2896,1068],{}," 也允许提供 ",[1657,2899,1663],{},"，若存在 ",[1657,2902,1663],{}," 则限定读入的最多字符数。若字符 ",[923,2905,1764],{}," 出现在 ",[923,2908,1068],{}," 占位符的 ",[923,2911,1645],{}," 后，则此占位符并不对应到任何参数。使用 ",[923,2914,1640],{}," 占位符来匹配 ",[923,2917,1645],{}," 字符。",[1113,2920,2922],{"id":2921},"输入失败选读","输入失败（选读）",[919,2924,2925,2926,2928,2929,2931],{},"若 ",[923,2927,1068],{}," 未能按照占位符的规定读取到期望的值，亦或者没有匹配到期望的模式，抑或出现了 EOF，则导致输入失败。你可以通过 ",[923,2930,1068],{}," 的返回值来判断输入失败：",[1686,2933,2934,2945,2948],{},[1689,2935,2936,2938,2939,2942,2943,1792],{},[923,2937,1068],{}," 在正常情况下返回成功写入的变量个数：比如 ",[923,2940,2941],{},"scanf(\"%d%d\", &a, &b)"," 在正常情况下返回 ",[923,2944,1262],{},[1689,2946,2947],{},"若某个模式匹配发生失败（比如期望整数但读取到非数字的字符），则后续的匹配输入不再进行，只返回当前成功匹配并写入的变量个数。",[1689,2949,2950,2951,1267,2954,2956,2957,2959,2960,2964,2965,1284],{},"若发生了 EOF 错误，则返回 ",[923,2952,2953],{},"EOF",[923,2955,2953],{}," 是一个定义于头文件 ",[923,2958,1841],{}," 的",[1089,2961,2963],{"href":2962},"\u002Fappendix\u002Fpreprocessor#idx_%E5%AE%8F","宏","，你可以把它理解成一个 ",[923,2966,948],{},[919,2968,2969],{},"所以你可以这样判断输入是否出现问题：",[932,2971,2973],{"className":934,"code":2972,"language":936,"meta":937,"style":937},"int a;\n\u002F\u002F scanf(\"%d\", &a) 在正常时返回 1，匹配失败时返回 0，EOF 时返回 EOF\nif (scanf(\"%d\", &a) != 1) {\n    printf(\"scanf failed\");\n}\n\u002F* 类似 C++ 中 if (cin >> a) ... *\u002F\n",[923,2974,2975,2983,2988,3023,3038,3042],{"__ignoreMap":937},[941,2976,2977,2979,2981],{"class":943,"line":944},[941,2978,948],{"class":947},[941,2980,1004],{"class":1003},[941,2982,1027],{"class":955},[941,2984,2985],{"class":943,"line":971},[941,2986,2987],{"class":2004},"\u002F\u002F scanf(\"%d\", &a) 在正常时返回 1，匹配失败时返回 0，EOF 时返回 EOF\n",[941,2989,2990,2993,2996,2998,3000,3002,3004,3006,3008,3010,3012,3014,3017,3019,3021],{"class":943,"line":1030},[941,2991,2992],{"class":1834},"if",[941,2994,2995],{"class":955}," (",[941,2997,1068],{"class":951},[941,2999,956],{"class":955},[941,3001,1073],{"class":955},[941,3003,1077],{"class":1076},[941,3005,1073],{"class":955},[941,3007,1082],{"class":955},[941,3009,1085],{"class":955},[941,3011,1089],{"class":1088},[941,3013,1859],{"class":955},[941,3015,3016],{"class":955}," !=",[941,3018,2070],{"class":1010},[941,3020,1859],{"class":955},[941,3022,1862],{"class":955},[941,3024,3025,3027,3029,3031,3034,3036],{"class":943,"line":1884},[941,3026,1867],{"class":951},[941,3028,956],{"class":955},[941,3030,1073],{"class":955},[941,3032,3033],{"class":1143},"scanf failed",[941,3035,1073],{"class":955},[941,3037,1092],{"class":955},[941,3039,3040],{"class":943,"line":1909},[941,3041,2366],{"class":955},[941,3043,3044],{"class":943,"line":1968},[941,3045,3046],{"class":2004},"\u002F* 类似 C++ 中 if (cin >> a) ... *\u002F\n",[919,3048,3049,3050,3052,3053,3056,3057,3060],{},"解决的办法和 ",[923,3051,925],{}," 类似，首先需清除失败状态，然后清空缓冲区。清除失败状态可通过调用 ",[923,3054,3055],{},"clearerr","，而清空缓冲区的一般方法是调用 ",[923,3058,3059],{},"getchar"," 耗尽：",[932,3062,3064],{"className":934,"code":3063,"language":936,"meta":937,"style":937},"int a;\nif (scanf(\"%d\", &a) != 1) {\n    printf(\"scanf failed\");\n    clearerr(stdin); \u002F* 清除失败状态（有时可省去） *\u002F\n    \u002F* 以下是清空一行缓冲区的代码 *\u002F\n    int ch;\n    while((ch = getchar()) != '\\n' && ch != EOF);\n}\n",[923,3065,3066,3074,3106,3120,3135,3140,3150,3193],{"__ignoreMap":937},[941,3067,3068,3070,3072],{"class":943,"line":944},[941,3069,948],{"class":947},[941,3071,1004],{"class":1003},[941,3073,1027],{"class":955},[941,3075,3076,3078,3080,3082,3084,3086,3088,3090,3092,3094,3096,3098,3100,3102,3104],{"class":943,"line":971},[941,3077,2992],{"class":1834},[941,3079,2995],{"class":955},[941,3081,1068],{"class":951},[941,3083,956],{"class":955},[941,3085,1073],{"class":955},[941,3087,1077],{"class":1076},[941,3089,1073],{"class":955},[941,3091,1082],{"class":955},[941,3093,1085],{"class":955},[941,3095,1089],{"class":1088},[941,3097,1859],{"class":955},[941,3099,3016],{"class":955},[941,3101,2070],{"class":1010},[941,3103,1859],{"class":955},[941,3105,1862],{"class":955},[941,3107,3108,3110,3112,3114,3116,3118],{"class":943,"line":1030},[941,3109,1867],{"class":951},[941,3111,956],{"class":955},[941,3113,1073],{"class":955},[941,3115,3033],{"class":1143},[941,3117,1073],{"class":955},[941,3119,1092],{"class":955},[941,3121,3122,3125,3127,3130,3132],{"class":943,"line":1884},[941,3123,3124],{"class":951},"    clearerr",[941,3126,956],{"class":955},[941,3128,3129],{"class":1076},"stdin",[941,3131,2001],{"class":955},[941,3133,3134],{"class":2004}," \u002F* 清除失败状态（有时可省去） *\u002F\n",[941,3136,3137],{"class":943,"line":1909},[941,3138,3139],{"class":2004},"    \u002F* 以下是清空一行缓冲区的代码 *\u002F\n",[941,3141,3142,3145,3148],{"class":943,"line":1968},[941,3143,3144],{"class":947},"    int",[941,3146,3147],{"class":1076}," ch",[941,3149,1027],{"class":955},[941,3151,3152,3155,3158,3161,3163,3166,3169,3171,3174,3176,3179,3182,3185,3188,3191],{"class":943,"line":1975},[941,3153,3154],{"class":1834},"    while",[941,3156,3157],{"class":955},"((",[941,3159,3160],{"class":1076},"ch ",[941,3162,1058],{"class":955},[941,3164,3165],{"class":951}," getchar",[941,3167,3168],{"class":955},"())",[941,3170,3016],{"class":955},[941,3172,3173],{"class":955}," '",[941,3175,1877],{"class":1003},[941,3177,3178],{"class":955},"'",[941,3180,3181],{"class":955}," &&",[941,3183,3184],{"class":1076}," ch ",[941,3186,3187],{"class":955},"!=",[941,3189,3190],{"class":1076}," EOF",[941,3192,1092],{"class":955},[941,3194,3195],{"class":943,"line":2008},[941,3196,2366],{"class":955},[919,3198,3199],{},"不过确实比较麻烦。",[2446,3201,3202],{},[919,3203,3204,3205,3207,3208,3210,3211,3213,3214,3216,3217,3220,3221,3223],{},"在 C 中，字符类型在更多场合下用 ",[923,3206,948],{}," 存储而非 ",[923,3209,2694],{},"，原因就是需要足够大的空间提供给 ",[923,3212,2953],{}," 这个特殊字符。比如 ",[923,3215,3059],{}," 函数（作用类似 C++ 中 ",[923,3218,3219],{},"cin.get()","）就返回 ",[923,3222,948],{}," 类型。",[2446,3225,3226],{},[919,3227,3228,3229,3232],{},"有资料说 ",[923,3230,3231],{},"fflush(stdin);"," 可用于清理缓冲区，但这实际上是未定义行为。",[3234,3235,3236],"style",{},"html pre.shiki code .spNyl, html code.shiki .spNyl{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}html pre.shiki code .s2Zo4, html code.shiki .s2Zo4{--shiki-light:#6182B8;--shiki-default:#82AAFF;--shiki-dark:#82AAFF}html pre.shiki code .sMK4o, html code.shiki .sMK4o{--shiki-light:#39ADB5;--shiki-default:#89DDFF;--shiki-dark:#89DDFF}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html.light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html pre.shiki code .sTEyZ, html code.shiki .sTEyZ{--shiki-light:#90A4AE;--shiki-default:#EEFFFF;--shiki-dark:#BABED8}html pre.shiki code .sbssI, html code.shiki .sbssI{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}html pre.shiki code .swJcz, html code.shiki .swJcz{--shiki-light:#E53935;--shiki-default:#F07178;--shiki-dark:#F07178}html pre.shiki code .sHdIc, html code.shiki .sHdIc{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#EEFFFF;--shiki-default-font-style:italic;--shiki-dark:#BABED8;--shiki-dark-font-style:italic}html pre.shiki code .sfazB, html code.shiki .sfazB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}html pre.shiki code .s7zQu, html code.shiki .s7zQu{--shiki-light:#39ADB5;--shiki-light-font-style:italic;--shiki-default:#89DDFF;--shiki-default-font-style:italic;--shiki-dark:#89DDFF;--shiki-dark-font-style:italic}html pre.shiki code .sHwdD, html code.shiki .sHwdD{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#546E7A;--shiki-default-font-style:italic;--shiki-dark:#676E95;--shiki-dark-font-style:italic}",{"title":937,"searchDepth":944,"depth":971,"links":3238},[3239,3241,3243],{"id":1115,"depth":971,"text":3240},"输出：printf",{"id":2377,"depth":971,"text":3242},"输入：scanf",{"id":2921,"depth":971,"text":2922},"在 C++ 中，我们用 cin 和 cout 来控制输入输出；然而在 C 中，我...","md",null,{},{"icon":303},{"title":313,"description":3244},"v6EcrczaNRTMJKpSIJp6KbFehxbFmwrH6rxdARtDOQw",[3252,3254],{"title":309,"path":310,"stem":311,"description":3253,"icon":303,"children":-1},"就目前而言 C 和 C++ 的语法大致上相似，唯有如下不同",{"title":317,"path":318,"stem":319,"description":3255,"icon":272,"children":-1},"我之前讲了一些整数类型，如 int long long 等等，它们的取值范围都比较大。",1784618119817]