0-9这十个数字中任取4位组成4位数字共有多少种排列法?能给列出来吗?

0-9这十个数字中任取4位组成4位数字共有多少种排列法?能给列出来吗?

第一位数字选法有9种,还有9个数字9*9*8*7=56*81=4536共有4536种排列法======以下答案可供参考======供参考答案1:如果0-9中允许重合的10×10×10×10中排列，如果0-9中不允许重合的10×9×8×7中排列供参考答案2:不计0开头，不重复，共有4536种，字数限制，只列出前1000种1023,1024,1025,1026,1027,1028,1029,1032,1034,1035,1036,1037,1038,1039,1042,1043,1045,1046,1047,1048,1049,1052,1053,1054,1056,1057,1058,1059,1062,1063,1064,1065,1067,1068,1069,1072,1073,1074,1075,1076,1078,1079,1082,1083,1084,1085,1086,1087,1089,1092,1093,1094,1095,1096,1097,1098,1203,1204,1205,1206,1207,1208,1209,1230,1234,1235,1236,1237,1238,1239,1240,1243,1245,1246,1247,1248,1249,1250,1253,1254,1256,1257,1258,1259,1260,1263,1264,1265,1267,1268,1269,1270,1273,1274,1275,1276,1278,1279,1280,1283,1284,1285,1286,1287,1289,1290,1293,1294,1295,1296,1297,1298,1302,1304,1305,1306,1307,1308,1309,1320,1324,1325,1326,1327,1328,1329,1340,1342,1345,1346,1347,1348,1349,1350,1352,1354,1356,1357,1358,1359,1360,1362,1364,1365,1367,1368,1369,1370,1372,1374,1375,1376,1378,1379,1380,1382,1384,1385,1386,1387,1389,1390,1392,1394,1395,1396,1397,1398,1402,1403,1405,1406,1407,1408,1409,1420,1423,1425,1426,1427,1428,1429,1430,1432,1435,1436,1437,1438,1439,1450,1452,1453,1456,1457,1458,1459,1460,1462,1463,1465,1467,1468,1469,1470,1472,1473,1475,1476,1478,1479,1480,1482,1483,1485,1486,1487,1489,1490,1492,1493,1495,1496,1497,1498,1502,1503,1504,1506,1507,1508,1509,1520,1523,1524,1526,1527,1528,1529,1530,1532,1534,1536,1537,1538,1539,1540,1542,1543,1546,1547,1548,1549,1560,1562,1563,1564,1567,1568,1569,1570,1572,1573,1574,1576,1578,1579,1580,1582,1583,1584,1586,1587,1589,1590,1592,1593,1594,1596,1597,1598,1602,1603,1604,1605,1607,1608,1609,1620,1623,1624,1625,1627,1628,1629,1630,1632,1634,1635,1637,1638,1639,1640,1642,1643,1645,1647,1648,1649,1650,1652,1653,1654,1657,1658,1659,1670,1672,1673,1674,1675,1678,1679,1680,1682,1683,1684,1685,1687,1689,1690,1692,1693,1694,1695,1697,1698,1702,1703,1704,1705,1706,1708,1709,1720,1723,1724,1725,1726,1728,1729,1730,1732,1734,1735,1736,1738,1739,1740,1742,1743,1745,1746,1748,1749,1750,1752,1753,1754,1756,1758,1759,1760,1762,1763,1764,1765,1768,1769,1780,1782,1783,1784,1785,1786,1789,1790,1792,1793,1794,1795,1796,1798,1802,1803,1804,1805,1806,1807,1809,1820,1823,1824,1825,1826,1827,1829,1830,1832,1834,1835,1836,1837,1839,1840,1842,1843,1845,1846,1847,1849,1850,1852,1853,1854,1856,1857,1859,1860,1862,1863,1864,1865,1867,1869,1870,1872,1873,1874,1875,1876,1879,1890,1892,1893,1894,1895,1896,1897,1902,1903,1904,1905,1906,1907,1908,1920,1923,1924,1925,1926,1927,1

正好我需要