#include <stdio.h> #include<string.h> void reverse(char* left, char* right) { while (left < right) { char tmp = *left; *left = *right; *right = tmp; left++; right--; } } int main() { char arr1[100] = { 0 }; //输入 gets_s(arr1); //倒转字符串 int len = strlen(arr1); revers...