#include<stdio.h>
#include<string.h>
int main()
{
char str1[] = "Original String";
char str2[] = "New Strint";
char str3[100];
strcpy_s(str1, str2);
strcpy_s(str3, "Copy Successful");
printf("str1:%s\n",str1);
printf("str2:%s\n", str2);
printf("str3:%s\n", str3);
return 0;
}
printf("str1:%s\n",str1);这句话有问题,你把引号写到后面了,