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 In the linux system programing ,the pointer is important part.

so,we will see  a simple example using the pointer. I hope it can help you know the pointer in the parameter transmit,the point function.

#include <stdio.h>
 char *input(void)
  {
   char *word;
  word="www.eepw.com.cn";
   return word;
  }

int main(void)
{
 char *p;
 p=input();
 printf("p=%s\n",p);
  
  
 return 0;
}