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haxe中bind

  var sx:Int = 10;    var sy:Int = 20;    private function call(fn:Void->Void):Void{        fn();    }    private function gogo(xx:Int,yy:Int):Void{        trace("xx:"+xx,"yy:"+yy);        trace("sx:"+sx,"sy:"+sy);    }call(gogo.bind(sx,sy));

 

输出:xx:10   yy:20

   sx:10  yy:20

 

Timer.delay(gogo.bind(sx,sy),1000);//call(gogo.bind(sx,sy));        sx= sy = 10;

输出:xx:10  yy:20

  sx:10  sy:10

绑定时数值类型的数据会直接传入数值,那么引用类型的呢?

 sp= new FlxSprite();        _testGroup.add(sp);//一个displayobjectcontainer        call(gogo.bind(sp));        Timer.delay(gogo.bind(sp),1000);        sp.alpha = 0;   var sp:FlxSprite;    private function call(fn:Void->Void):Void{        fn();    }    private function gogo(sp:FlxSprite):Void{        trace("alpha"+sp.alpha);    }

输出:alpha1

  alpha0

结论:基本数据类型传的是当时的数据,引用类型的变量传的是引用

 

haxe中bind