摘要： public class Leaf{int i=0;Leaf(int i){this.i=i;}Leaf increament(){i++;return this;}void print(){System.out.println("i="+i);}public static void main(String[] args){Leaf leaf=new Leaf(100);Leaf leaf1 = leaf.increament(); Leaf leaf2 = leaf1.increament(); leaf2.print();}} 阅读全文