using

来源： https://stackoverflow.com/questions/58791938/c-sharp-8-understanding-await-using-syntax

来源： https://stackoverflow.com/questions/58791938/c-sharp-8-understanding-await-using-syntax

来源： https://stackoverflow.com/questions/58791938/c-sharp-8-understanding-await-using-syntax

问题 I've installed the Microsoft.Identity.Client in Visual Studio and can now declare using Microsoft.Identity.Client; within the code. Visual Studio is happy. Unity, however, is not. Assets\Scripts\AutoKhan.cs(8,17): error CS0234: The type or namespace name 'Identity' does not exist in the namespace 'Microsoft' (are you missing an assembly reference?) What must I do to make Unity similarly happy? 回答1: I have run into similar issues when using external libraries. Often there is a dll to add to

问题 This code snippet demonstrating changing class member access came from IBM. struct A { protected: int y; public: int z; }; struct B : private A { }; struct C : private A { public: using A::y; using A::z; }; struct D : private A { protected: using A::y; using A::z; }; struct E : D { void f() { y = 1; z = 2; } }; struct F : A { public: using A::y; private: using A::z; }; int main() { B obj_B; // obj_B.y = 3; // obj_B.z = 4; C obj_C; obj_C.y = 5; obj_C.z = 6; D obj_D; // obj_D.y = 7; // obj_D.z

问题 I have a question about the using statement for multiple files at once. I have created an overload for a class that I want to use in my program. To do so in one of my files I have added the following using statement. using ClassName = CustomClassName; This works, but only for that particular file. Is there a way to get this to work for my entire project? 回答1: This is called type aliasing, re-utilizing the using keyword may be confusing, but it is not an import. The purpose of this statement

问题 I'm trying to define a pair of type aliases at the top of my C# program. This is a short example of what I'm trying to do: using System; using System.Collections.Generic; namespace Foo { using TsvEntry = Dictionary<string, string>; using Tsv = List<TsvEntry>; } When I try to compile this using mcs 3.2.8.0, I get the following error message: foo.cs(6,19): error CS0246: The type or namespace name `TsvEntry' could not be found. Are you missing an assembly reference? Is it possible to use using

问题 I'm trying to define a pair of type aliases at the top of my C# program. This is a short example of what I'm trying to do: using System; using System.Collections.Generic; namespace Foo { using TsvEntry = Dictionary<string, string>; using Tsv = List<TsvEntry>; } When I try to compile this using mcs 3.2.8.0, I get the following error message: foo.cs(6,19): error CS0246: The type or namespace name `TsvEntry' could not be found. Are you missing an assembly reference? Is it possible to use using

问题 Is Close() same as Dispose() or using statement. Is it necessary to call using statement even if Close is called?. I know before disposing of an object, close should be called, so we close the resource and may it available to Dispose . https://msdn.microsoft.com/en-us/library/aa355056(v=vs.110).aspx says Close is same as Dispose . 回答1: Close() has no relation to IDisposable interface, see: https://msdn.microsoft.com/en-us/library/system.idisposable(v=vs.110).aspx using only applies to

问题 Is Close() same as Dispose() or using statement. Is it necessary to call using statement even if Close is called?. I know before disposing of an object, close should be called, so we close the resource and may it available to Dispose . https://msdn.microsoft.com/en-us/library/aa355056(v=vs.110).aspx says Close is same as Dispose . 回答1: Close() has no relation to IDisposable interface, see: https://msdn.microsoft.com/en-us/library/system.idisposable(v=vs.110).aspx using only applies to