二进制图片的读写
................\ImageDemo
................\.........\Image.sql
................\.........\ImageDemo
................\.........\.........\ImageDemo

................\.........\.........\.........\AssemblyInfo.cs
................\.........\.........\.........\bin
................\.........\.........\.........\...\Debug
................\.........\.........\.........\...\.....\ImageDemo.exe
................\.........\.........\.........\...\.....\ImageDemo.pdb
................\.........\.........\.........\DataBaseAccess.cs
................\.........\.........\.........\frmPicture.cs
................\.........\.........\.........\frmPicture.resx
................\.........\.........\.........\ImageDemo.csproj
................\.........\.........\.........\ImageDemo.csproj.user
................\.........\.........\.........\obj
................\.........\.........\.........\...\Debug
................\.........\.........\.........\...\.....\ImageDemo.exe
................\.........\.........\.........\...\.....\ImageDemo.frmPicture.resources
................\.........\.........\.........\...\.....\ImageDemo.pdb
................\.........\.........\.........\...\.....\temp
................\.........\.........\.........\...\.....\TempPE
................\.........\.........\ImageDemo.sln
................\.........\ImageDemo.suo