数字1、2、3、4、5、6、7、8、9、0组成四个一组的所有组合、有谁列...答:1234,1235,1236,1237,1238,1239,1230,然后是124-的有7个,125-有7个,126-127-128-129-120-各7个,1345,1346,1347,1348,1349,1340,,,,然后1356,1357,1358,1359,1350,然后1456,1457,1458,1459,1450,然后1567,1568,1569,1560然后,1678,1679,1670,1789,1780,1890,,,关于1的还有吗 ...