字符串的复制（二）

#include <stdio.h>int main(){ void copy_string(char from[ ], char to[ ]); char a[ ]="I am a teacher."; char b[ ]="you are a student."; printf("string a=%s/nstring b=%s/n",a,b); printf("copy string a to string b:/n "); copy_string(a,b); printf("/nstring a=%s/nstring b=%s/n",a,b); system("pause");}void copy_string(char from[ ], char to[ ]){ int i=0; while(from[i]!='/0') { to[i]=from[i]; i++; } to[i]='/0';}