C#case语句实例

以下是一个使用C# case语句的实例，用于根据用户输入的数字输出对应的星期几：

int day = 3;
string dayString;

switch(day) {
   case 1:
      dayString = "Monday";
      break;
   case 2:
      dayString = "Tuesday";
      break;
   case 3:
      dayString = "Wednesday";
      break;
   case 4:
      dayString = "Thursday";
      break;
   case 5:
      dayString = "Friday";
      break;
   case 6:
      dayString = "Saturday";
      break;
   case 7:
      dayString = "Sunday";
      break;
   default:
      dayString = "Invalid day";
      break;
}

Console.WriteLine("Today is " + dayString);

在上面的例子中，用户输入的数字为3，程序将执行第三个case，将dayString赋值为"Wednesday"，然后输出"Today is Wednesday"。如果用户输入的数字不在1到7之间，则执行default语句，将dayString赋值为"Invalid day"，然后输出"Today is Invalid day"。