C#多个局部变量声明
usingSystem;classDemo{staticvoidMain(){inta=20,b=70,c=40,d=90;Console.WriteLine("{0}{1}{2}{3}",a,b,c,d);}}
C#进阶
C#赋值运算符
usingSystem;namespaceOperatorsAppl{classProgram{staticvoidMain(string[]args){inta=21;intc;c=a;Console.WriteLine("Li
C#管理线程
usingSystem;usingSystem.Threading;namespaceMultithreadingApplication{classThreadCreationProgram{publicstaticvoidCallToCh
C#通过引用传递参数
usingSystem;namespaceCalculatorApplication{classNumberManipulator{publicvoidswap(refintx,refinty){inttemp;temp=x;/*savet
C#命名空间使用关键字
usingSystem;usingfirst_space;usingsecond_space;namespacefirst_space{classabc{publicvoidfunc(){Console.WriteLine("In
C#使用递归来计算阶乘
usingSystem;namespaceMyApplication{classFactorial{publicintdisplay(intn){if(n==1)return1;elsereturnn*display(n-1);}stati
C#将十进制转换为八进制数
usingSystem;classDemo{publicstaticvoidMain(){intdecVal,quot,i=1,j;int[]octalVal=newint[80];decVal=40;quot=decVal;Console
C#抽象和虚拟类
usingSystem;namespacePolymorphismApplication{classShape{protectedintwidth,height;publicShape(inta=0,intb=0){width=a;heig
C#嵌套switch语句
usingSystem;namespaceDecisionMaking{classProgram{staticvoidMain(string[]args){inta=100;intb=200;switch(a){case100:Consol
C#类型转换方法
usingSystem;namespaceTypeConversionApplication{classStringConversion{staticvoidMain(string[]args){inti=75;floatf=53.005f
C#交错数组
usingSystem;namespaceArrayApplication{classMyArray{staticvoidMain(string[]args){/*ajaggedarrayof5arrayofintegers*/int[][
C#使用while循环来计算阶乘
usingSystem;namespaceMyApplication{classFactorial{publicintdisplay(intn){intres=1;while(n!=1){res=res*n;n=n-1;}returnres
C#接口
usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem;namespaceInterfaceApplication{publicinterf
C#二维数组
usingSystem;namespaceArrayApplication{classMyArray{staticvoidMain(string[]args){/*anarraywith5rowsand2columns*/int[,]a=n
C#使用string.concat来连接字符串
usingSystem;classProgram{staticvoidMain(){stringstr1="Tom";//concatenationstringstr2=string.Concat("Hanks
C#二进制字符串转换为整型
usingSystem;classProgram{staticvoidMain(){stringstr="1001";Console.WriteLine("Integer:"+ConvertClass
C#类与结构
usingSystem;structBooks{privatestringtitle;privatestringauthor;privatestringsubject;privateintbook_id;publicvoidgetValue
C#数组声明
usingSystem;namespaceMyApplication{classMyClass{staticvoidMain(string[]args){//nisanarrayof5integersint[]a=newint[5];int
C#使用命名空间
usingSystem;namespacefirst_space{classnamespace_cl{publicvoidfunc(){Console.WriteLine("Insidefirst_space");}}}
C#处理异常
usingSystem;namespaceErrorHandlingApplication{classDivNumbers{intresult;DivNumbers(){result=0;}publicvoiddivision(intnum