javaµÄСÎÊÌâ extends
public class Student{
//×ֶε͍Òå
private String _number; //ѧºÅ
private String _name; //ÐÕÃû
private int _age; //ÄêÁä
private boolean _sex; //ÐÔ±ð
private double _score; //³É¼¨
public Student(String number,String name,int age,boolean sex,double score){
//¹¹Ôì·½·¨
this._number = number;
this._name = name;
this._age = age;
this._sex = sex;
this._score = score;
}
public void show(){
//Êä³ö
System.out.println( "ѧºÅ£º " + _number);
System.out.println( "ÐÕÃû£º " + _name);
System.out.println( "ÄêÁ䣺 " + _age);
System.out.println( "ÐԱ𣺠" + _sex);
System.out.println( "³É¼¨£º " + _score);
}
public static void main(String[] args){
Student st = new Student( "0001 ", "kog ",25,true,88.7);
st.show();
}
}
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select a.name as parename ,b.name as chliname,a.typeId as paretype,b.typeid as chlitype from prodkind a inner join prodkind b where a.typeId=b.parentId
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