第10讲面向对象编程基础（1）本讲内容一、为什么要面向对象编程为什么要面向对象编程doublebalance=0;voidWithdraw(doubleamount){balance-=amount;}voidDeposit(doubleamount){balance+=amount;}doublebalance=0;voidWithdraw(doubleamount){balance-=amount;}voidDeposit(doubleamount){balance+=amount;}封装的优点publicclassAccount{privatedoublebalance=0;publicvoidWithdraw(doubleamount){balance-=amount;}publicvoidDeposit(doubleamount){balance+=amount;}publicvoidShowBalance(){Console.WriteLine(“Currentbalanceis{0}”,balance);}}二、类与对象类与对象SnoSno三、静态与非静态1、静态数据2、静态方法（StaticMethod）静态的另一个案例完整代码：3、使用this关键字4、静态与非静态的访问方式省略类名省略对象名5、静态与非静态间调用关系classProgram{staticvoidStaticMethod1(){StaticMethod2();//Method1();}staticvoidStaticMethod2(){}voidMethod1(){StaticMethod2();Method2();}voidMethod2(){}}重温HelloWorld程序重温HelloWorld程序(续)小结