装饰器模式 和 代理模式的不同
更新时间：2022-12-17 19:12
最满意答案
写入：Dim sr As New IO.StreamWriter(Application.StartupPath & "/写入的文本.txt")
sr.WriteLine("写入的内容") sr.Close()读取：If (File.Exists(Application.StartupPath & "/msg.txt")) Then
Dim fm As New IO.FileStream(Application.StartupPath & "/读取的文本.txt", FileMode.Open)
Dim sr As IO.StreamReader = New IO.StreamReader(fm)
Do While sr.Peek() >= 0
TextBox1.Text = sr.ReadLine() （读取文本到文本框）
Loop end if
其他回答
using sw as streamwriter = new streamwriter("e:\qq.txt", true) '在这里改动一下，如果存在这个文件则续写，不存在则创建
sw.write("this is the ")
sw.writeline("header for the file.")
sw.writeline("-------------------")
sw.write("the date is: ")
sw.writeline(datetime.now)
sw.close()
end using
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