C# where语法问题public static T AsActual(this T persistable)where T :IPersistablepublic interface IRepositoryFactory{T GetRepository()where T :class;}上面两种函数后带where的写法是什么意思?与LinQ有关?

C# where语法问题public static T AsActual(this T persistable)where T :IPersistablepublic interface IRepositoryFactory{T GetRepository()where T :class;}上面两种函数后带where的写法是什么意思?与LinQ有关? C#语法的问题 get set的用法public class Users { private int _userid; private string _username; private string _userpwd; public int UserId { get { return this._userid; } set { this._userid = value; } } public string UserName { get { return this C#语法问题 this的用法public class Users{private int _userid;private string _username;private string _userpwd;public int UserId{get { return this._userid; }set { this._userid = value; }}public string UserName{get { return this._username; }set { 英语名词语法问题The ______ about nuclear energy revolves around the waste problem.a. public’s chief concern c. chief public concernb. public chief concern d. chief concern of public’s答案是A,为什么不选D C#中的Console.Read（）和Console.ReadLine()刚刚用C#写了一个顺序表,由于成员函数的实现有点长因此不再赘述而且代码也应该没什么问题,我就把出现问题的主函数贴在下面：public static void Main(){ S c# public ObservableCollection icons = new ObservableCollection(); C#的语法指什么? 数据库问题,like ,%select * from 语法 where 结构 like '%[定语] C#如何在工程中 定义 public、private 请教一个C#定义Event的问题请问public event behindClickEventHandler behindClick;和public event behindClickEventHandler behindClick{add{Events.AddHandler(MyObj,value);}remove{Events.RemoveHandler(MyObj,value);}}二者的区别是什么?还 回文数的C#问题. C#图形时钟绘制问题 c# base的意义public abstract class B { public B(D t) { Console.WriteLine(B); } public void K() { Console.WriteLine(K); } } public class C : B { public C(String Where is Kate's hat?It's here.是否正确,作语法说明 C# where’s your mother n的回答问题where’s your mother c# Flush()的问题//// 摘要:// 当在派生类中被重写时,将缓冲区中的所有内容刷新到基础流,并同时刷新基础流.public abstract void Flush();啥意思啊?我不能上QQ~ 请教一道语法题~Where a capitalist economy encourages private actions and ownership,a communist system calls for public ownership and control by the state.where在这里是什么意思?做连词引导什么从句?