如何使用Else If 语句和Switch 条件编写C程序来打印月份的天数？众所周知，月份的总天数是：
- 一月、三月、五月、八月、十月和十二月 = 31 天
- 四月、六月、九月和十一月 = 30 天
- 二月 = 28 或 29 天
使用Else If 打印月份天数的C语言程序
此C语言程序将要求用户输入1到12之间的任意数字，其中1代表一月，2代表二月，3代表三月，...，12代表十二月。
根据用户输入的整数值，该程序将打印出该月份的天数。为了实现此目标，我们使用了Else If 语句。
/* C Program to Print Number of Days in a Month using Else If Statement */
#include <stdio.h>
int main()
{
int month;
printf(" Please Enter the Month Number 1 to 12 (Consider 1 = January, and 12 = December) : ");
scanf("%d", &month);
if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12 )
{
printf("\n 31 Days in this Month");
}
else if ( month == 4 || month == 6 || month == 9 || month == 11 )
{
printf("\n 30 Days in this Month");
}
else if ( month == 2 )
{
printf("\n Either 28 or 29 Days in this Month");
}
else
printf("\n Please enter Valid Number between 1 to 12");
return 0;
}
我输入月份数字为5
Please Enter the Month Number 1 to 12 (Consider 1 = January, and 12 = December) : 5
31 Days in this Month我输入月份数字为9
Please Enter the Month Number 1 to 12 (Consider 1 = January, and 12 = December) : 9
30 Days in this Month这次，我们将输入错误的值：15
Please Enter the Month Number 1 to 12 (Consider 1 = January, and 12 = December) : 15
Please enter Valid Number between 1 to 12使用Switch 条件返回月份天数的C语言程序
这是处理多个C编程条件的理想方法。在此程序中，我们使用Switch Case方法来打印月份的天数。
#include <stdio.h>
int main()
{
int month;
printf(" Please Enter the Month Number 1 to 12 (Consider 1 = January, and 12 = December) : ");
scanf("%d", &month);
switch(month )
{
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
printf("\n 31 Days in this Month");
break;
case 4:
case 6:
case 9:
case 11:
printf("\n 30 Days in this Month");
break;
case 2:
printf("\n Either 28 or 29 Days in this Month");
default:
printf("\n Please enter Valid Number between 1 to 12");
}
return 0;
}
Please Enter the Month Number 1 to 12 (Consider 1 = January, and 12 = December) : 12
31 Days in this Month让我尝试输入不同的值
Please Enter the Month Number 1 to 12 (Consider 1 = January, and 12 = December) : 6
30 Days in this Month