Apache flex 在actionscript中，什么是更快的普通对象或强类型对象？

也是如此

比我有一个像User这样的值对象要慢

public var user:Object = {}; 
user["firstName"] = "Bill";
user["lastName"] = "Cosby";

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与任何速度优势相比，更重要的是，强类型为您提供了编译时类型检查，这样您就不会键入属性名称-节省了大量开发人员时间，这比时钟周期要昂贵得多

虽然是的，但静态输入也有速度优势

var user:User = new User();
user.firstName = "Bill";
user.lastName = "Cosby";

结论：键入的比未键入的快

public function speedTest():void               
{            
    var typedObjects:Array = [];
    var dynamicObjects:Array = [];
    var typedObject:User;
    var dynamicObject:Object;
    var i:int = 0;
    var n:int = 10000;
    for (i; i < n; i++)
    {
        dynamicObject = {};
        dynamicObjects.push(dynamicObject);
        typedObject = new User();
        typedObjects.push(typedObject);
    }
    // typed
    var time:int = getTimer();
    i = 0;
    n = 10000;
    for (i; i < n; i++)
    {
        typedObject = typedObjects[i];
        typedObject.firstName = "Bill";
        typedObject.lastName = "Cosby";
    }
    var end:int = getTimer() - time;
    trace("TypedObject Time: ", end/1000, "sec");

    // untyped
    time = getTimer();
    i = 0;
    n = 10000;
    for (i; i < n; i++)
    {
        dynamicObject = dynamicObjects[i];
        dynamicObject["firstName"] = "Bill";
        dynamicObject["lastName"] = "Cosby";
    }
    end = getTimer() - time;
    trace("DynamicObject Time: ", end/1000, "sec");
}   

TypedObject Time:  0.002 sec
DynamicObject Time:  0.007 sec
TypedObject Time:  0.002 sec
DynamicObject Time:  0.006 sec
TypedObject Time:  0.002 sec
DynamicObject Time:  0.006 sec