python(for循環練習),無重複數，用戶登陸

1.""" 有1，2，3，4四個數字 求這四個數字能生成多少個互不相同且無重複數字的三位數 「」" """ #_*_coding:utf-8_*_ Name:無重複三位數.py Date:1/17/19 Author: Connect:[email protected] Desc: """ num = (1,2,3,4) count=0 for i in num: for j in num

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