C# winform 爬虫，输入关键词得到结果

D:\csharp-programming\第五次课程作业\爬虫\爬虫\bin\Debug\netcoreapp3.1\爬虫.exe D:\csharp-programming\第五次课程作业\爬虫\爬虫\bin\Debug\netcoreapp3.1\爬虫.deps.json D:\csharp-programming\第五次课程作业\爬虫\爬虫\bin\Debug\netcoreapp3.1\爬虫.runtimeconfig.json D:\csharp-programming\第五次课程作业\爬虫\爬虫\bin\Debug\netcoreapp3.1\爬虫.runtimeconfig.dev.json D:\csharp-programming\第五次课程作业\爬虫\爬虫\bin\Debug\netcoreapp3.1\爬虫.dll D:\csharp-programming\第五次课程作业\爬虫\爬虫\bin\Debug\netcoreapp3.1\爬虫.pdb D:\csharp-programming\第五次课程作业\爬虫\爬虫\obj\Debug\netcoreapp3.1\爬虫.csproj.AssemblyReference.cache D:\csharp-programming\第五次课程作业\爬虫\爬虫\obj\Debug\netcoreapp3.1\爬虫.Form1.resources D:\csharp-programming\第五次课程作业\爬虫\爬虫\obj\Debug\netcoreapp3.1\爬虫.csproj.GenerateResource.cache D:\csharp-programming\第五次课程作业\爬虫\爬虫\obj\Debug\netcoreapp3.1\爬虫.GeneratedMSBuildEditorConfig.editorconfig D:\csharp-programming\第五次课程作业\爬虫\爬虫\obj\Debug\netcoreapp3.1\爬虫.AssemblyInfoInputs.cache D:\csharp-programming\第五次课程作业\爬虫\爬虫\obj\Debug\netcoreapp3.1\爬虫.AssemblyInfo.cs D:\csharp-programming\第五次课程作业\爬虫\爬虫\obj\Debug\netcoreapp3.1\爬虫.csproj.CoreCompileInputs.cache D:\csharp-programming\第五次课程作业\爬虫\爬虫\obj\Debug\netcoreapp3.1\爬虫.dll D:\csharp-programming\第五次课程作业\爬虫\爬虫\obj\Debug\netcoreapp3.1\爬虫.pdb D:\csharp-programming\第五次课程作业\爬虫\爬虫\obj\Debug\netcoreapp3.1\爬虫.genruntimeconfig.cache