C语言–分支语句与循环结语句

#include 
int main()
{
	int day=0;
	scanf("%d", &day);
	switch (day)
	{
	case 1: 
	case 2:
	case 3:
	case 4:
	case 5:
		printf("工作日n");
		break;
	case 6:
	case 7:
		printf("休息日n");
		break;
	defaualt:
		printf("输入错误n");
	}
	return 0;
}

#include 
int main()
{
	int i = 1;
	while(i

#include 
int main()
{
	int n = 1;
	int s = 1;
	int x = 0;
  int sum = 0;
	scanf("%d", &x);
	for (n = 1; n 

#include  
#include  
int main()
{
	int i = 0;
	char password[20] = { 0 };
	for (i=0;i");
		scanf("%s",password);
		if (strcmp(password, "123456") == 0)//== 不能用来比较两个字符串是否相等，应该使用一个库函数-strcmp
		{
			printf("登入成功n");
			break ;
		}
		else
		{
			printf("密码错误n");
		}
	}
	if (i == 3)
        printf("三次密码均错误，退出程序n");
	return 0;服务器托管网
}