如何异步装载大图像文件
......................\Example
......................\.......\bin
......................\.......\...\Debug
......................\.......\...\.....\Example.exe
......................\.......\...\.....\Example.pdb
......................\.......\...\.....\Example.vshost.exe
......................\.......\Example.csproj
......................\.......\Form1.cs
......................\.......\Form1.Designer.cs
......................\.......\Form1.resx
......................\.......\obj
......................\.......\...\Debug
......................\.......\...\.....\Example.csproj.GenerateResource.Cache
......................\.......\...\.....\Example.exe
......................\.......\...\.....\Example.Form1.resources
......................\.......\...\.....\Example.pdb
......................\.......\...\.....\Example.Properties.Resources.resources
......................\.......\...\.....\TempPE
......................\.......\...\Example.csproj.FileList.txt
......................\.......\Program.cs
......................\.......\Properties
......................\.......\..........\AssemblyInfo.cs
......................\.......\..........\Resources.Designer.cs
......................\.......\..........\Resources.resx
......................\.......\..........\Settings.Designer.cs
......................\.......\..........\Settings.settings
......................\Example.sln