这里我们定义了一个函数reverse_string，这个函数递归地调用它自己。
#include <stdio.h>#include <string.h>void reverse_string(char*, int, int);int main(){ //This array would hold the string upto 150 char char string_array[150]; printf("Enter any string:"); scanf("%s", &string_array); //Calling our user defined function reverse_string(string_array, 0, strlen(string_array)-1); printf("\nReversed String is: %s",string_array); return 0;}void reverse_string(char *x, int start, int end){ char ch; if (start >= end) return; ch = *(x+start); *(x+start) = *(x+end); *(x+end) = ch; //Function calling itself: Recursion reverse_string(x, ++start, --end);}输出：
Enter any string: chaitanyaReversed String is: aynatiahc
