strcpy源代码

#include <stdio.h>#include <string.h>#include <assert.h>char *myStrcpy(char *strDest, const char *strSrc);int main(void){char p[20] ;char *q = "just for you";printf("%s\n",myStrcpy(p, q));printf("%d\n",strlen(myStrcpy(p, q)));return 0;}char *myStrcpy(char *strDest, const char *strSrc){assert( (strDest != NULL) && (strSrc != NULL) );char *address = strDest;while( (*strDest++ = *strSrc++) != '\0' ){NULL ;}return address ;}