如何在文件中使用字符串.写线

Question

我正在尝试在Visual Basic中使用file.WriteLine将一串代码插入到文本文件中，但是每当我检查文本文件时，它只复制了字符串名称，而不是内容，这是我的代码：

文本文件将具有"printf(strc011(;"，而不是将"strc011"部分替换为"Hello World！

Public Class Form1
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Dim file As System.IO.StreamWriter
        file = My.Computer.FileSystem.OpenTextFileWriter("TEST.txt", True)
        Dim strc011 As String
        strc011 = "Hello World!"
        file.WriteLine("#include<stdio.h>
                        main()
                        {
                        printf(strc011);}
        ")
        file.Close()
    End Sub
End Class

Answer 1

假设您使用的是 VB 14 或更高版本，您将需要使用字符串插值，这是一种模板。

下面是一个正确的实现：

Public Class Form1
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Dim file As System.IO.StreamWriter
        file = My.Computer.FileSystem.OpenTextFileWriter("TEST.txt", True)
        Dim strc011 As String
        strc011 = "Hello World!"
        file.WriteLine($"#include<stdio.h>
                        main()
                        {
                        printf({strc011});}
        ")
        file.Close()
    End Sub
End Class

Answer 2

我想

通了，结果我以错误的方式定义和调用了字符串，这是工作代码：

Public Class Form1 Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click Dim file As System.IO.StreamWriter file = My.Computer.FileSystem.OpenTextFileWriter("TEST.txt", True) Dim strc011 As String = "Hello World!" file.WriteLine("#include<stdio.h> main() { printf(""" & strc011 & """);} ") file.Close() End Sub End Class

将 strc011 暗为字符串 = "你好世界！- 用于定义字符串

"" & strc011 & "" - 用于调用它