[C语言]递归实现strlen
#include<stdio.h>
#include<stdlib.h>
#include<assert.h>
int strlen_(char *arr){
if (*arr != '\0'){
return 1 + strlen_(arr + 1);
}
else
return 0;
}
int main(){
char *a = "abcdef";
int ret = strlen_(a);
printf("%d\n", ret);
system("pause");
return 0;
}