等价划分法测试表格

| 测试用例编号 | 输入 | 预期输出 | |------------|------------|-------------| | 1 | "abc" | "a,b,c" | | 2 | "123" | "1,2,3" | | 3 | "abcd1234" | "a,b,c,d,1,2,3,4" | | 4 | "" | "" | | 5 | "aaa" | "a,a,a" | | 6 | "xyz" | "x,y,z" | | 7 | "aAbBcC" | "a,A,b,B,c,C" | | 8 | "a1b2c3" | "a,1,b,2,c,3" | | 9 | "zzz" | "z,z,z" | | 10 | "111" | "1,1,1"