c语言入门教程–16字符串常见操作

#include <stdio.h>
#include <string.h>
 
int main ()
{
   
   char s1[14] = "aaa";
   char s2[14] = "bbb";
   char s3[14];
   int  len ;
 
   //复制s1到s3 
   strcpy(s3, s1);
   printf("strcpy( s3, s1) : %s\n", s3 );
 
   //拼接s1和s2 
   strcat( s1, s2);
   printf("strcat( s1, s2): %s\n", s1 );
 
   //求s1的总长度 
   len = strlen(s1);
   printf("strlen(s1) : %d\n", len );
 
   if(strcmp(s1,s2)==0)
   {
   
   	 printf("s1与s2相同\n");
   }
   else
   {
   
   	 printf("s1与s2不相同\n");
   }
   
   return 0;
}