#include <stdio.h>                                                                                                                         
#include <string.h>                                                                                                                        
                                                                                                                                           
char*                                                                                                                                      
copy_string(char *string)                                                                                                                  
{                                                                                                                                          
    //static char tmp[20];                                                                                                                 
    static char *temp;                                                                                                                     
    memcpy(&temp,&string,10);                                                                                                              
    //memcpy(temp,string,10);                                                                                                              
    //memcpy(*temp,*string,10);                                                                                                            
                                                                                                                                           
    return temp;                                                                                                                           
}                                                                                                                                          
                                                                                                                                           
int                                                                                                                                        
main()                                                                                                                                     
{                                                                                                                                          
    char *show,*result;                                                                                                                    
    show="haha show";                                                                                                                      
    result="test";                                                                                                                         
    printf("show point to address : %p\n",show);                                                                                           
    printf("result point to address : %p\n",result);                                                                                       
    result = copy_string(show);                                                                                                            
    printf("***result string : %s\n",result);                                                                                                        
    printf("show point to address : %p\n",show);                                                                                           
    printf("result point to address : %p\n",result);  
                                                                                                                                        
    return 0;                                                                                                                              
}