private void button1_Click(object sender, System.EventArgs e)
{           
    Clipboard.SetDataObject(textBox1.Text,true);                                    
}
private void button2_Click(object sender, System.EventArgs e)
{
    if(Clipboard.GetDataObject().GetDataPresent(DataFormats.Text))
        textBox1.Text = Clipboard.GetDataObject().GetData(DataFormats.Text).ToString();
    else
        textBox1.Text  = "The clipboad does not contain any text";
}
我使用 C# Windows 窗体应用程序编写此应用程序