实现窗体淡出淡入效果
....................\TestDanRu
....................\.........\TestDanRu
....................\.........\.........\bin
....................\.........\.........\...\Debug
....................\.........\.........\...\.....\TestDanRu.exe
....................\.........\.........\...\.....\TestDanRu.pdb
....................\.........\.........\...\.....\TestDanRu.vshost.exe
....................\.........\.........\Form1.cs
....................\.........\.........\Form1.Designer.cs
....................\.........\.........\Form1.resx
....................\.........\.........\obj
....................\.........\.........\...\Debug
....................\.........\.........\...\.....\TempPE
....................\.........\.........\...\.....\TestDanRu.csproj.GenerateResource.Cache
....................\.........\.........\...\.....\TestDanRu.exe
....................\.........\.........\...\.....\TestDanRu.Form1.resources
....................\.........\.........\...\.....\TestDanRu.pdb
....................\.........\.........\...\.....\TestDanRu.Properties.Resources.resources
....................\.........\.........\...\TestDanRu.csproj.FileList.txt
....................\.........\.........\Program.cs
....................\.........\.........\Properties
....................\.........\.........\..........\AssemblyInfo.cs
....................\.........\.........\..........\Resources.Designer.cs
....................\.........\.........\..........\Resources.resx
....................\.........\.........\..........\Settings.Designer.cs
....................\.........\.........\..........\Settings.settings
....................\.........\.........\TestDanRu.csproj
....................\.........\TestDanRu.sln