字符串复制

#include <stdio.h>  #include <string.h>int main()  {  char s1[80], s2[80];int i;printf("input s2:");scanf("%s", s2);for(i = 0; i <= strlen(s2); i++)s1[i] = s2[i];printf("s1:%s\n", s1);return 0;  }