C语言超细致讲解分支语句

#define  _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
int main()
{
	int a = 0;
	printf("选择学C语言的态度:\n");
	scanf("%d", &a);
	if (0 != a)
	{
		printf("好好学C语言\n");
	}
	else
	{
		printf("不好好学C语言\n");
	}
	return 0;
}

#include<stdio.h>
int main()
{
	int day = 0;
	scanf("%d", &day);
	switch (day)
	{
		case 1:
			printf("星期一\n");
			break;
		case 2:
			printf("星期二\n");
			break;
		case 3:
			printf("星期三\n");
			break;
		case 4:
			printf("星期四\n");
			break;
		case 5:
			printf("星期五\n");
			break;
		case 6:
			printf("星期六\n");
			break;
		case 7:
			printf("星期天\n");
			break;
		default:
			printf("选择错误\n");
			break;
	}
	return 0;
}

#include <stdio.h>
//switch代码演示
int main()
{
    int day = 0;
    scanf("%d", &day);
    switch (day)
    {
        case 1:
        case 2:
        case 3:
        case 4:
        case 5:
                 printf("weekday\n");
                 break;
        case 6:
        case 7:
                  printf("weekend\n");
                  break;
   }
   return 0;
}