![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
调节窗体透明度 namespace 可调节透明度的窗体 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { this.Opacity _________; } private void button2_Click(object sender, EventArgs e) { if (this.Opacity > 0.2) this.Opacity __________; else this.Close(); } } }