为什么它产生错误“需要表达式”？

Why it is producing the error "expression required"?

为什么它产生错误“需要表达式”?

Public Class WinApp

    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load

    End Sub

    Private Sub buttonSubmit_Click(sender As Object, e As EventArgs) Handles buttonSubmit.Click
        MessageBox.Show("Hello" + ' ' + "how are you");
    End Sub
End Class

2 个解决方案

#1

In order to run app in c# open the c# application . You are opening vb.net project and asking c# code :) Actual code for concatenate is given below in c#

要在c#中运行app,请打开c#应用程序。您正在打开vb.net项目并询问c#代码:)下面在c#中给出了连接的实际代码

 private void button1_Click(object sender, EventArgs e)
        {
            MessageBox.Show("Hello" + ' ' + "how are you");
        }

#2

MessageBox.Show("Hello" + " " + "how are you") is the VB.net code .. you're mixing it with some other code C# or C++ code etc.

MessageBox.Show(“Hello”+“”+“你好吗”)是VB.net代码..你将它与其他一些代码C#或C ++代码等混合在一起。

#1