C#一个渐变并且消失的窗体

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace WindowsApplication3
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
this.timer1.Enabled = true;//获取当前运行时间
this.Opacity = 1;//获取当前窗体的透明度级别;
}
private void timer1_Tick(object sender, EventArgs e)
{
if (this.Opacity >0.9)
{
this.Opacity = this.Opacity -0.01;//窗体以0.01的速度渐变
}
else if (this.Opacity < 0)
{
this.timer1.Enabled = false;//时间为false
}
else
{
Close();///渐变消失
}

}
}
}

 

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