又学了一招——JAVA中三个点（...）的运算符，表示可变参数列表

public class ThreePoints { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub System.out.println("print none:"); printAList(); System.out.println("print a int list:"); printAList(1,2,3,4); } private static void printAList(int ...in_list){ for(int i:in_list) System.out.println(i); } }

print none: print a int list: 1 2 3 4