beetl 性能揭秘 2 ：语言如何存取变量

var a = "hi";
print(a);

String value1 = "a";
    String value2 = "b";
    String value3 = "c";
    String key1 = "key1";
    String key2 = "key2";
    String key3 = "key3";
    String[] objects = new String[3];
    int loop = 10000 * 5000;
            //计算数组存消耗的时间
    Log.key1Start();
    for (int i = 0; i < loop; i++) {
        objects[0] = value1;
        objects[1] = value2;
        objects[2] = value3;

    }
    Log.key1End();

    Map<String, String> map = new HashMap<String, String>(3);
            //计算Map存消耗的时间
    Log.key2Start();
    for (int i = 0; i < loop; i++) {
        map.put(key1, value1);
        map.put(key2, value2);
        map.put(key3, value3);

    }
    Log.key2End();

            // 计算数组取消耗的时间
    Log.key3Start();
    for (int i = 0; i < loop; i++) {
        value1 = objects[0];
        value2 = objects[1];
        value3 = objects[2];

    }
    Log.key3End();
            // 计算map取消耗的时间
    Log.key4Start();
    for (int i = 0; i < loop; i++) {
        value1 = map.get(key1);
        value2 = map.get(key2);
        value3 = map.get(key3);

    }
    Log.key4End();
            //打印性能统计数据
    Log.display("使用数组设置", "使用Map设置", "使用数组读取", "使用map读取");

context.vars[varNode.index] = "hi"
print(context.vars[varNode.index]);

var a = 0;
{
var b = 2;   
}
{
var c = 2;
} 

var d =1 ；

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beetl 性能揭秘 2 ：语言如何存取变量

原文：http://my.oschina.net/u/567839/blog/293167