剑指offer-38.字符串的排列(或数字全排列)

题目来源:https://leetcode-cn.com/problems/zi-fu-chuan-de-pai-lie-lcof/python 输入一个字符串,打印出该字符串中字符的全部排列。数组 你能够以任意顺序返回这个字符串数组,但里面不能有重复元素。app 示例:ui 输入:s = "abc" 输出:["abc","acb","bac","bca","cab","cba"]code 思路:
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