ฟังก์ชันเกี่ยวกับสตริง

#include <stdio.h>

#include <string.h>

int main ()

{

   char str[50],str2[50],str3[50];

   int len,ret;

   strcpy(str, "String Function");

   strcpy(str2, "Wellcome To ");

   strcpy(str3, "fuction String");

   len = strlen(str);

   printf("strcpy = %s\nstrlen = %d \n", str, len);

   strcat(str2,str);

   printf("strcat = %s\n", str2);

   ret = strcmp(str, str3);

   if(ret < 0)

   {

      printf("str > str3");

   }

   else if(ret > 0) 

   {

      printf("str3 > str");

   }

   else 

   {

      printf("str = str3");

   }

   return(0);

}

ผลการรัน

strcpy = String Function

strlen = 15

strcat = Wellcome To String Function

str > str3