strncat函数实现

#include <stdio.h>#define N 50char *my_strncat(char *dest,char *src,int count){char *tmp = dest;while(*tmp)tmp++;for(;count;count--)*tmp ++ = *src++;*tmp = '\0';return dest;}int main(void){char dest[N] = "Good good!";char src[N] = "study!";int count;printf("Please enter a number:\n");scanf("%d",&count);printf("After my string cat:dest = %s\n",my_strncat(dest,src,count));return 0;}