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

浙公网安备 33010602011771号