不带R的墨菲特

摘要： from functools import reduce list1=list2=list3=["a","b","c","d"]排列组合a,b，c.d 组合3成字母字符串结果不重复一共多少种？方法一： def add(x,y): return [str(i)+str(j) for i in x for j in y] result=reduce(add,[list1,list2,list3... 阅读全文