05 2019 档案
摘要：实验程序如下： public class 图形 { public static void main(String[] args) { point p1=new point(0,0); point p2=new point(1,0); point p3=new point(0,1); rectangl
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摘要：一 public class Du {public static void main(String[] args) {}}class Rectangle{protected double length;protected double width;public Rectangle(double le
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摘要：package Students;public class Person { public String name; public String birthday; public String province,city; public int count; public Person(String
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