As3.0中的Dictionary使用测试
代码如下:
package { import flash.display.Sprite; import flash.utils.Dictionary; public class AsTestDemo extends Sprite { public function AsTestDemo() { //类似于Java中的Map var dict:Dictionary = new Dictionary(); //Dictionary强大之处 dict[3.01] = "vokie"; dict["123"] = -100; dict[123] = 100; dict[8] = 2.11; trace(dict[3.01]); trace(dict.hasOwnProperty(3+0.01)); //Java.Map.ContainsKey trace(dict.hasOwnProperty("3.01")); trace(dict.hasOwnProperty(123)); trace(dict.hasOwnProperty(1234)); trace("--------------------"); for(var s1:String in dict) //for(in)语句迭代key { trace("key:"+s1); } trace("--------------------"); for each(var s2:String in dict) //for each(in)语句迭代value { trace("value:"+s2); } } } }
运行结果:
vokie true true true false -------------------- key:8 key:123 key:3.01 -------------------- value:2.11 value:100 value:vokie
测试结果中的键值覆盖,以及key、value的类型很随意,无需一一对应,使用的时候需要注意