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C#进阶

C#获取子串

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usingSystem;namespaceStringApplication{classStringProg{staticvoidMain(string[]args){stringstr="LastnightIdreamtofSa

C#null结合运算符(??)

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usingSystem;namespaceCalculatorApplication{classNullablesAtShow{staticvoidMain(string[]args){double?num1=null;double?num

C#基本语法

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usingSystem;namespaceRectangleApplication{classRectangle{//membervariablesdoublelength;doublewidth;publicvoidAcceptdetai

C#I/O文本文件

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usingSystem;usingSystem.IO;namespaceFileApplication{classProgram{staticvoidMain(string[]args){string[]names=newstring[]{

C#二进制转为十进制

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usingSystem;usingSystem.Collections.Generic;usingSystem.Text;namespaceDemo{classtoBinary{staticvoidMain(string[]args){in

C#属性访问器

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usingSystem;namespaceyiibai{classStudent{privatestringcode="N.A";privatestringname="notknown";privat

C#委托多播

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usingSystem;delegateintNumberChanger(intn);namespaceDelegateAppl{classTestDelegate{staticintnum=10;publicstaticintAddNum

C#枚举

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usingSystem;namespaceEnumApplication{classEnumProgram{enumDays{Sun,Mon,tue,Wed,thu,Fri,Sat};staticvoidMain(string[]args)

C#类

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usingSystem;namespaceBoxApplication{classBox{publicdoublelength;//Lengthofaboxpublicdoublebreadth;//Breadthofaboxpublicd

C#递归方法调用

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usingSystem;namespaceCalculatorApplication{classNumberManipulator{publicintfactorial(intnum){/*localvariabledeclaration*

C#冒泡排序程序

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usingSystem;namespaceBubbleSort{classMySort{staticvoidMain(string[]args){int[]arr={78,55,45,98,13};inttemp;for(intj=0;j&