比较这些对象并返回一个整数值，指示第一项小于、大于还是等于第二项。该方法将以递归方式比较嵌套对象上的属性，并在发现非零结果后立即返回。默认情况下，该方法将递归到任何属性的最深层。要更改比较的深度，可为 depth 参数指定非负值。

参数

var a:Object = {name:"Bob", info:[1,2,3]};
      var b:Object = {name:"Alice", info:[5,6,7]};
      var c:int = ObjectUtil.compare(a, b, 0);

复制指定对象并返回对该副本的引用。该副本使用本机序列化技术生成。这意味着在复制过程中将遵循该自定义的序列化。

该方法设计用于复制数据对象，如集合的元素。不能用于复制 UIComponent 对象，如 TextInput 控件。如果要创建特定 UIComponent 对象的副本，可创建该组件的子类并实现 clone() 方法，或执行复制的其它方法。

参数

比较两个 Date 对象并返回一个整数值,指示第一个 Date 对象是在第二个 Date 对象之前、相等还是之后。

参数

返回指定对象的关于该类以及该类的属性的信息。

参数

使用 getClassInfo 并检查元数据信息以确定给定对象上的属性是否具有指定的元数据。

参数

如果指定的对象引用为简单数据类型，则返回 true。简单数据类型包括以下类型：

• String
• Number
• uint
• int
• Boolean
• Date
• Array

参数

比较两个数值。

参数

比较两个字符串值。

参数

将指定的对象代码美化为一个字符串。所有属性将按字母排序。打印过程中将为每个对象分配一个 ID；该值将在对象类型标记的旁边显示，前面带有“#”号，例如：

(mx.messaging.messages::AsyncMessage)#2.

此 ID 用于指示 circular 引用发生的时间。Class　类型的对象属性将仅显示为分配的类型。例如如下所示的自定义的定义：

public class MyCustomClass {
          public var clazz:Class;
        }

为 clazz 属性分配Date 的显示如下：

(somepackage::MyCustomClass)#0
          clazz = (Date)

参数

// example 1
      var obj:AsyncMessage = new AsyncMessage();
      obj.body = [];
      obj.body.push(new AsyncMessage());
      obj.headers["1"] = { name: "myName", num: 15.3};
      obj.headers["2"] = { name: "myName", num: 15.3};
      obj.headers["10"] = { name: "myName", num: 15.3};
      obj.headers["11"] = { name: "myName", num: 15.3};
      trace(ObjectUtil.toString(obj));
           // will output to flashlog.txt
      (mx.messaging.messages::AsyncMessage)#0
        body = (Array)#1
          [0] (mx.messaging.messages::AsyncMessage)#2
            body = (Object)#3
            clientId = (Null)
            correlationId = ""
            destination = ""
            headers = (Object)#4
            messageId = "378CE96A-68DB-BC1B-BCF7FFFFFFFFB525"
            sequenceId = (Null)
            sequencePosition = 0
            sequenceSize = 0
            timeToLive = 0
            timestamp = 0
        clientId = (Null)
        correlationId = ""
        destination = ""
        headers = (Object)#5
          1 = (Object)#6
            name = "myName"
            num = 15.3
          10 = (Object)#7
            name = "myName"
            num = 15.3
          11 = (Object)#8
            name = "myName"
            num = 15.3
          2 = (Object)#9
            name = "myName"
            num = 15.3
        messageId = "1D3E6E96-AC2D-BD11-6A39FFFFFFFF517E"
        sequenceId = (Null)
        sequencePosition = 0
        sequenceSize = 0
        timeToLive = 0
        timestamp = 0
           // example 2 with circular references
      obj = {};
      obj.prop1 = new Date();
      obj.prop2 = [];
      obj.prop2.push(15.2);
      obj.prop2.push("testing");
      obj.prop2.push(true);
      obj.prop3 = {};
      obj.prop3.circular = obj;
      obj.prop3.deeper = new ErrorMessage();
      obj.prop3.deeper.rootCause = obj.prop3.deeper;
      obj.prop3.deeper2 = {};
      obj.prop3.deeper2.deeperStill = {};
      obj.prop3.deeper2.deeperStill.yetDeeper = obj;
      trace(ObjectUtil.toString(obj));
           // will output to flashlog.txt
      (Object)#0
        prop1 = Tue Apr 26 13:59:17 GMT-0700 2005
        prop2 = (Array)#1
          [0] 15.2
          [1] "testing"
          [2] true
        prop3 = (Object)#2
          circular = (Object)#0
          deeper = (mx.messaging.messages::ErrorMessage)#3
            body = (Object)#4
            clientId = (Null)
            code = (Null)
            correlationId = ""
            destination = ""
            details = (Null)
            headers = (Object)#5
            level = (Null)
            message = (Null)
            messageId = "14039376-2BBA-0D0E-22A3FFFFFFFF140A"
            rootCause = (mx.messaging.messages::ErrorMessage)#3
            sequenceId = (Null)
            sequencePosition = 0
            sequenceSize = 0
            timeToLive = 0
            timestamp = 0
          deeper2 = (Object)#6
            deeperStill = (Object)#7
              yetDeeper = (Object)#0
     
     // example 3 with Dictionary
     var point:Point = new Point(100, 100);
     var point2:Point = new Point(100, 100);
     var obj:Dictionary = new Dictionary();
     obj[point] = "point";
     obj[point2] = "point2";
     obj["1"] = { name: "one", num: 1};
     obj["two"] = { name: "2", num: 2};
     obj[3] = 3;
     trace(ObjectUtil.toString(obj));
     
     // will output to flashlog.txt
     (flash.utils::Dictionary)#0
       {(flash.geom::Point)#1
         length = 141.4213562373095
         x = 100
         y = 100} = "point2"
       {(flash.geom::Point)#2
         length = 141.4213562373095
         x = 100
         y = 100} = "point"
       {1} = (Object)#3
         name = "one"
         num = 1
       {3} = 3
       {"two"} = (Object)#4
         name = "2"
         num = 2