仿照vs编辑器的TabControl功能编写，实现拖拽、关闭、设置等功能，
需要什么新功能可自行添加。
contextUI.ConextTabControl 参数：
moveOpacity 移动标签透明度
moveMaskOpacity 移动覆盖透明度
tabControlColor 组件颜色
tabFont 字体
selectColor 选中标签颜色
selectFontColor 选中标签字体颜色
tabColor 未选中颜色
tabFontColor 未选中字体颜色
selectIndex 获取当前tab序号
tabMoveColor 移动到未选中标签颜色
tabFlagColor 关闭标志颜色
tabFlagMoveColor 移动到未选中标签颜色
tabContentColor 内容背景颜色
tabCloseFlag 是否显示关闭
NewRecord 获取当前标签数量
delete 是允许删除标签
deleteTag 取得删除的序号
deletePoint 取得删除的位置
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contextUI.ConextTabControl 方法：
放置组件 Put(Control obj, Size size, Point point, EventHandler getIndex, EventHandler swapIndex, EventHandler deleteIndex, DockStyle dockStyle = DockStyle.None)
标签位置交换 public void ItemSwap(int swap1, int swap2)
第一个放置标签 public void AddItem(string item)
标签内添加组件 public void AddControl(int num, Control control)
添加标签 public void NewItem(string item)
删除标签 public void DeleteItem(int num)
设置组件大小 public void setTabBoxSize(Size size)
设置选中的标签 public void setSelect(int sel)
设置指定标签文字 public void setLabelText(int num,string text)
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资源文件列表
Demo_4/.vs/Demo_4/v15/.suo , 44032
Demo_4/.vs/Demo_4/v15/Server/sqlite3/db.lock , 0
Demo_4/.vs/Demo_4/v15/Server/sqlite3/storage.ide , 610304
Demo_4/.vs/Demo_4/v15/Server/sqlite3/storage.ide-shm , 32768
Demo_4/.vs/Demo_4/v15/Server/sqlite3/storage.ide-wal , 4136512
Demo_4/Demo_4/App.config , 189
Demo_4/Demo_4/bin/Debug/0.jpg , 46096
Demo_4/Demo_4/bin/Debug/1.jpg , 40064
Demo_4/Demo_4/bin/Debug/2.jpg , 24149
Demo_4/Demo_4/bin/Debug/Demo_4.exe , 25600
Demo_4/Demo_4/bin/Debug/Demo_4.exe.config , 189
Demo_4/Demo_4/bin/Debug/Demo_4.pdb , 58880
Demo_4/Demo_4/ConextTabControl.cs , 29118
Demo_4/Demo_4/Demo_4.csproj , 3631
Demo_4/Demo_4/Form1.cs , 4616
Demo_4/Demo_4/Form1.Designer.cs , 1228
Demo_4/Demo_4/obj/Debug/Demo_4.csproj.CoreCompileInputs.cache , 42
Demo_4/Demo_4/obj/Debug/Demo_4.csproj.FileListAbsolute.txt , 464
Demo_4/Demo_4/obj/Debug/Demo_4.csproj.GenerateResource.cache , 954
Demo_4/Demo_4/obj/Debug/Demo_4.csprojAssemblyReference.cache , 11490
Demo_4/Demo_4/obj/Debug/Demo_4.exe , 25600
Demo_4/Demo_4/obj/Debug/Demo_4.pdb , 58880
Demo_4/Demo_4/obj/Debug/Demo_4.Properties.Resources.resources , 180
Demo_4/Demo_4/obj/Debug/DesignTimeResolveAssemblyReferences.cache , 831
Demo_4/Demo_4/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache , 7064
Demo_4/Demo_4/obj/Debug/TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs , 0
Demo_4/Demo_4/obj/Debug/TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs , 0
Demo_4/Demo_4/obj/Debug/TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs , 0
Demo_4/Demo_4/Program.cs , 518
Demo_4/Demo_4/Properties/AssemblyInfo.cs , 1310
Demo_4/Demo_4/Properties/Resources.Designer.cs , 2825
Demo_4/Demo_4/Properties/Resources.resx , 5612
Demo_4/Demo_4/Properties/Settings.Designer.cs , 1093
Demo_4/Demo_4/Properties/Settings.settings , 249
Demo_4/Demo_4.sln , 1116