C# winform 子窗体调用父窗体函数实现关闭该窗体打开另一个窗体

C:\Users\yanjun\Desktop\实例\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.exe.config C:\Users\yanjun\Desktop\实例\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.exe C:\Users\yanjun\Desktop\实例\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.pdb C:\Users\yanjun\Desktop\实例\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.csprojResolveAssemblyReference.cache C:\Users\yanjun\Desktop\实例\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.Form1.resources C:\Users\yanjun\Desktop\实例\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.Form2.resources C:\Users\yanjun\Desktop\实例\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.Form3.resources C:\Users\yanjun\Desktop\实例\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.Properties.Resources.resources C:\Users\yanjun\Desktop\实例\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.csproj.GenerateResource.Cache C:\Users\yanjun\Desktop\实例\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.exe C:\Users\yanjun\Desktop\实例\WindowsFormsApplication1\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.pdb