[英]C# switch statement validation
I was wondering if there was a way to do something like this in C#: 我想知道是否有办法在C#中做这样的事情:
some loop here
{
Console.WriteLine("Please enter a or b");
switch (Console.ReadLine().ToLower())
{
case "a":
//some code here
break;
case "b":
//some code here
break;
default:
Console.WriteLine("Error, enter a or b");
repeat loop
}
}
It's probably a stupid question but something like that would be greatly beneficial to my assignment. 这可能是一个愚蠢的问题,但这样的事情对我的任务大有裨益。
Why not. 为什么不。 Run a while loop that exists only when a or b is entered.
运行仅在输入a或b时存在的while循环。
bool condition = false;
Console.WriteLine("Please enter a or b");
string str = string.Empty;
while (!condition)
{
str = Console.ReadLine().ToLower();
switch (str)
{
case "a":
//some code here
condition = true;
break;
case "b":
//some code here
condition = true;
break;
default:
Console.WriteLine("Error, enter a or b");
break;
}
}
Console.WriteLine("You have entered {0} ", str);
Console.ReadLine();
What about something like this? 这样的事情怎么样?
var acceptedValues = new List<string>()
{
"a",
"b",
};
Console.WriteLine("Please enter {0}", string.Join("or", acceptedValues));
var enteredValue = string.Empty;
do
{
enteredValue = Console.ReadLine().ToLower();
} while (!acceptedValues.Contains(enteredValue));
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.