.NETFramework:4.7.2        IDE:VisualStudioCommunity2019         OS:Windows10x64     typesetting:Markdown       code usingSystem; namespaceConsoleApp { //委托 //返回类型void //参数类型int publicdelegatevoidMyDelegate(intnum); classProgram { staticvoidMain(string[]args) { MyDelegatetest=dele...