test9.cpp

编写strcpy函数,虽然简单,但是能检验出点水平的一个练习,在高质量c里有介绍.

#include <stdio.h> 
#include <string.h>
#define  STRLEN		10

char *myStrcpy(char *,const char*);

int main(void) 
{ 	
	char string[STRLEN];  
	char *str1 = "wetqwe";
	
	strcpy(string ,str1);
	printf("strcpy in sys lib = %s\n", string); 
	myStrcpy(string, str1); 
	printf("my strcpy = %s\n", string);
	return 0; 
} 

char *myStrcpy(char *destin,const char* source)
{
	while(((*destin++)=*(source++))!=NULL);
	return destin;

}