VB.Net Case语句中AND运算符的使用 [英] Use of AND operator in VB.Net Case statement

问题描述

我正在用 VB 制作石头剪刀布游戏.我正在寻找一种方法来完成以下工作:

I'm making a rock, paper, scissors game in VB. I'm looking for a way to make the following work:

Select Case userInput
       Case = "rock" And computerOutput = "scissors"
                Console.WriteLine("You win! You picked " & userInput & ", and the computer picked " & computerOutput & "! Rock beats Scissors, hit enter to continue...")
                Console.ReadLine()
                userScore = userScore + 1

userInput 和 computerInput 总是石头、纸或剪刀.

userInput and computerInput is always either rock, paper or scissors.

但是当我尝试时，我收到以下错误:

But when I try it I get the following error:

System.InvalidCastException: 'Conversion from string "rock" to type 'Boolean' is not valid.'

我是 VB 新手，所以不确定该怎么做.

I'm newish to VB so not really sure what to do.

推荐答案

你可以按照这个写SELECT CASE语句:

You can follow this to write SELECT CASE statement :

Select [ Case ] testexpression  
    [ Case expressionlist  
        [ statements ] ]  
    [ Case Else  
        [ elsestatements ] ]  
End Select  

对于您的代码，您可以这样尝试:

For your code, you can try like this :

Select Case userInput
   Case "rock"
        if computerOutput = "scissors" then
            Console.WriteLine("You win! You picked " & userInput & ", and the computer picked " & computerOutput & "! Rock beats Scissors, hit enter to continue...")
            Console.ReadLine()
            userScore = userScore + 1
        end if

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