这是作业
#include "stdafx.h"
#include<stdio.h>
void main()
{
int num;
printf("Please enter mun:\n");
scanf_s("%d", &num);
switch (num)
{
case 1: printf("Monday!\n");break;
case 2: printf("Tuesday!\n");break;
case 3: printf("Wednesday!\n");break;
case 4: printf("Thursday!\n");break;
case 5: printf("Friday!\n");break;
case 6: printf("Saturday!\n");break;
case 7: printf("Sunday!\n");break;
default: printf("Data error!\n");
}
}
这个代码在修改前可以在VC6.0运行，但是在VS2015里报错，具体如下，求解决办法

q求个VS2015