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chart.setOption({ color: [ " ["username"]=> string(5) "HGNET" ["tagsname"]=> string(0) "" ["tagsid"]=> string(0) "" ["catesname"]=> string(0) "" ["catesid"]=> string(0) "" ["createtime"]=> string(10) "1641183196" ["_id"]=> string(6) "158579" } [1]=> array(10) { ["id"]=> string(6) "158620" ["text"]=> string(60) "python之gui-tkinter可视化编辑界面 自动生成代码" ["intro"]=> string(288) "目录 ECharts 异步加载 ECharts 数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具,而是在交互、性能、数据处理等方面有更高的要求。 chart.setOption({ color: [ " ["username"]=> string(7) "darkspr" ["tagsname"]=> string(0) "" ["tagsid"]=> string(0) "" ["catesname"]=> string(0) "" ["catesid"]=> string(0) "" ["createtime"]=> string(10) "1641183190" ["_id"]=> string(6) "158620" } [2]=> array(10) { ["id"]=> string(6) "158603" ["text"]=> string(66) "python3.6 +tkinter GUI编程 实现界面化的文本处理工具" ["intro"]=> string(288) "目录 ECharts 异步加载 ECharts 数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具,而是在交互、性能、数据处理等方面有更高的要求。 chart.setOption({ color: [ " ["username"]=> string(10) 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"" ["catesname"]=> string(0) "" ["catesid"]=> string(0) "" ["createtime"]=> string(10) "1641183184" ["_id"]=> string(6) "158605" } [5]=> array(10) { ["id"]=> string(5) "28228" ["text"]=> string(39) "tkinter python(图形开发界面)" ["intro"]=> string(288) "目录 ECharts 异步加载 ECharts 数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具,而是在交互、性能、数据处理等方面有更高的要求。 chart.setOption({ color: [ " ["username"]=> string(7) "yudanqu" ["tagsname"]=> string(0) "" ["tagsid"]=> string(0) "" ["catesname"]=> string(0) "" ["catesid"]=> string(0) "" ["createtime"]=> string(10) "1641183159" ["_id"]=> string(5) "28228" } [6]=> array(10) { ["id"]=> string(6) "158613" ["text"]=> string(34) "Tkinter图形界面设计(GUI)" ["intro"]=> string(288) "目录 ECharts 异步加载 ECharts 数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具,而是在交互、性能、数据处理等方面有更高的要求。 chart.setOption({ color: [ " ["username"]=> string(5) "pywjh" ["tagsname"]=> string(0) "" ["tagsid"]=> string(0) "" ["catesname"]=> string(0) "" ["catesid"]=> string(0) "" ["createtime"]=> string(10) "1641183158" ["_id"]=> string(6) "158613" } [7]=> array(10) { ["id"]=> string(6) "341361" ["text"]=> string(68) "量化分析获取数据的3种姿势(压箱底的神器Tushare)" ["intro"]=> string(288) "目录 ECharts 异步加载 ECharts 数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具,而是在交互、性能、数据处理等方面有更高的要求。 chart.setOption({ color: [ " ["username"]=> string(6) "casual" ["tagsname"]=> string(0) "" ["tagsid"]=> string(0) "" ["catesname"]=> string(0) "" ["catesid"]=> string(0) "" ["createtime"]=> string(10) "1641183069" ["_id"]=> string(6) "341361" } [8]=> array(10) { ["id"]=> string(6) "238879" ["text"]=> string(51) "面向交易的日内高频量化交易平台笔记" ["intro"]=> string(288) "目录 ECharts 异步加载 ECharts 数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具,而是在交互、性能、数据处理等方面有更高的要求。 chart.setOption({ color: [ " ["username"]=> string(18) "TaiYangXiManYouZhe" ["tagsname"]=> string(0) "" ["tagsid"]=> string(0) "" ["catesname"]=> string(0) "" ["catesid"]=> string(0) "" ["createtime"]=> string(10) "1641183067" ["_id"]=> string(6) "238879" } [9]=> array(10) { ["id"]=> string(6) "238890" ["text"]=> string(41) "2021 最新量化投资交易资源汇总" ["intro"]=> string(288) "目录 ECharts 异步加载 ECharts 数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具,而是在交互、性能、数据处理等方面有更高的要求。 chart.setOption({ color: [ " ["username"]=> string(7) "xgqfrms" ["tagsname"]=> string(0) "" ["tagsid"]=> string(0) "" ["catesname"]=> string(0) "" ["catesid"]=> string(0) "" ["createtime"]=> string(10) "1641183063" ["_id"]=> string(6) "238890" } } ["count"]=> int(535118) } WPF使用自定义Main函数 - 爱码网
dongweian

一、自定义Main函数

在WPF中,我们添加一个Program静态类,添加一个Main静态方法,需要注意的是该方法需要添加“STAThread”,表示WPF程序需运行在单一线程单元下。具体如下:

    static class Program
    {
        [STAThread] 
        static void Main()
        {
            Console.WriteLine("自定义Main函数");
            new MainWindow().ShowDialog();
        }
    }

上述的Main并没有调用App类,若需要使用App类,那么自定义Main函数内容如下:

        static void Main()
        {
            Console.WriteLine("自定义Main函数");
            new MainWindow().Show();
            new App().Run();
        }

二、编译自定义Main函数

此时,编译代码,报错“程序定义了多个入口点。使用/main(指定包含入口点的类型)进行编译”。此时,我们需要更改应用程序的启动对象为我们自定义的对象,具体如下:

image-20210515155049323

再次编译即可完成。

三、程序原先的Main在哪

在以上示例中,我们比较好奇程序原先的Main函数在哪?在代码完全没有搜索到,我们使用ildasm.exe查看IL代码查看,发现App类确实有Main函数。具体如下:

image-20210515161659729

打开Main方法查看代码,我们发现该代码是程序编译时生成的,具体如下:

.method public hidebysig static void  Main() cil managed
{
  .entrypoint
  .custom instance void [mscorlib]System.STAThreadAttribute::.ctor() = ( 01 00 00 00 ) 
  .custom instance void [mscorlib]System.Diagnostics.DebuggerNonUserCodeAttribute::.ctor() = ( 01 00 00 00 ) 
  .custom instance void [System]System.CodeDom.Compiler.GeneratedCodeAttribute::.ctor(string,
                                                                                      string) = ( 01 00 16 50 72 65 73 65 6E 74 61 74 69 6F 6E 42   // ...PresentationB
                                                                                                  75 69 6C 64 54 61 73 6B 73 07 34 2E 30 2E 30 2E   // uildTasks.4.0.0.
                                                                                                  30 00 00 )                                        // 0..
  // 代码大小       22 (0x16)
  .maxstack  1
  .locals init ([0] class chapter01.App app)
  IL_0000:  nop
  IL_0001:  newobj     instance void chapter01.App::.ctor()
  IL_0006:  stloc.0
  IL_0007:  ldloc.0
  IL_0008:  callvirt   instance void chapter01.App::InitializeComponent()
  IL_000d:  nop
  IL_000e:  ldloc.0
  IL_000f:  callvirt   instance int32 [PresentationFramework]System.Windows.Application::Run()
  IL_0014:  pop
  IL_0015:  ret
} // end of method App::Main

我们打开程序obj/Debug下面的App.g.cs,可以找到Main函数,具体如下:

image-20210515162315699

分类:

WPF

技术点:

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