C#关系运算符
usingSystem;classProgram{staticvoidMain(string[]args){inta=21;intb=10;if(a==b){Console.WriteLine("Line1-aisequaltob
C#进阶
C#运算符优先级
usingSystem;namespaceOperatorsAppl{classProgram{staticvoidMain(string[]args){inta=20;intb=10;intc=15;intd=5;inte;e=(a+b)
C#将十进制转换为二进制
usingSystem;usingSystem.Collections.Generic;usingSystem.Text;namespaceDemo{classMyApplication{staticvoidMain(string[]arg
C#正则表达式示例1
usingSystem;usingSystem.Text.RegularExpressions;namespaceRegExApplication{classProgram{privatestaticvoidshowMatch(string
C#枚举
usingSystem;namespaceEnumApplication{classEnumProgram{enumDays{Sun,Mon,tue,Wed,thu,Fri,Sat};staticvoidMain(string[]args)
C#数组零索引
usingSystem;namespaceArrayApplication{classMyArray{staticvoidMain(string[]args){int[]n=newint[5];inti,j;/*begingsfromind
C#Hashtable类
usingSystem;usingSystem.Collections;namespaceCollectionsApplication{classProgram{staticvoidMain(string[]args){Hashtableh
C#定义常量
usingSystem;namespaceDeclaringConstants{classProgram{staticvoidMain(string[]args){constdoublepi=3.14159;//constantdeclar
C#if...else语句
usingSystem;namespaceDecisionMaking{classProgram{staticvoidMain(string[]args){/*localvariabledefinition*/inta=100;/*chec
C#程序结构
usingSystem;namespaceHelloWorldApplication{classHelloWorld{staticvoidMain(string[]args){/*myfirstprograminC#*/Console.Wr
C#带参数的构造函数
usingSystem;namespaceLineApplication{classLine{privatedoublelength;//LengthofalinepublicLine(doublelen){//Parameterizedc
C#属性已过时
usingSystem;publicclassMyClass{[Obsolete("Don'tuseOldMethod,useNewMethodinstead",true)]staticvoidOldMethod
C#按值传递参数
usingSystem;namespaceCalculatorApplication{classNumberManipulator{publicvoidswap(intx,inty){inttemp;temp=x;/*savethevalu
C#继承基类和派生类
usingSystem;namespaceInheritanceApplication{classShape{publicvoidsetWidth(intw){width=w;}publicvoidsetHeight(inth){heigh
C#使用索引器
usingSystem;namespaceIndexerApplication{classIndexedNames{privatestring[]namelist=newstring[size];staticpublicintsize=10
C#阶乘示例
usingSystem;namespaceMyApplication{classFactorial{publicintdisplay(intn){intres=1;while(n!=1){res=res*n;n=n-1;}returnres
C#break语句
usingSystem;namespaceLoops{classProgram{staticvoidMain(string[]args){/*localvariabledefinition*/inta=10;/*whileloopexecu
C#检查字符串是否为全字母短句
usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text.RegularExpressions;namespaceDemo{publiccla
C#逻辑运算符
usingSystem;namespaceOperatorsAppl{classProgram{staticvoidMain(string[]args){boola=true;boolb=true;if(a&&b){Cons
C#运算符重载
usingSystem;namespaceOperatorOvlApplication{classBox{privatedoublelength;//Lengthofaboxprivatedoublebreadth;//Breadthofa