數(shù)據(jù)驅(qū)動(dòng)、堅(jiān)持為客戶提供有價(jià)值的服務(wù)和內(nèi)容
public class implementsJK {//實(shí)現(xiàn)年齡接口 String xm; int csrq; public string(String n1,int y){ xm=n1; csrq=y; } public int age(){ return xm-csrq; } public void output(){ System.out.println(this.xm+"今年的年齡:"+"this