#include <stdio.h>
#include <string.h>
 
int main()
{
   char src[40];
   char dest[100];
  
   memset(dest, '\0', sizeof(dest));
   strcpy(src, "This is runoob.com");
   strcpy(dest, src);
 
   printf("最终的目标字符串： %s\n", dest);
   
   return(0);
}

#include <stdio.h>
 
int main()
{
    char s1[100], s2[100], i;
 
    printf("字符串 s1: ");
    scanf("%s",s1);
 
    for(i = 0; s1[i] != '\0'; ++i)
    {
        s2[i] = s1[i];
    }
 
    s2[i] = '\0';
    printf("字符串 s2: %s", s2);
 
    return 0;
}