标签：classmobile{privatecharmynumber[];//机主的电话号码public：voidinit(charnumber[]=””)//隐式定义的内联函数voiddial();//拨打电话的函数声明voidanswer(charothernumber[]);//接听电话的函数声明voidhangup();//挂断电话的函数声明}