actionscript-3 - as3函数指针

Question

private function myFunction(numIn:Number){
   trace ("numIn " + numIn);
}

var plan:Object = { "theFunctionName": "myFunction" }


// now use the function 

plan.theFunctionName(5);

// should trace out:  "numIn 5"

这行不通，但你能看到我在做什么吗？它有点像函数指针，或者当您将函数名称传递给事件监听器时。谢谢。

Answer 1

要么按照雅各布的建议去做，要么你甚至可以这样做:

// Your function.
function myFunction(numIn:Number):void
{
    trace("numIn " + numIn);
}


// Assign "myFunction" to the property "callback" of type "Function".
var callback:Function = myFunction;

// Call "myFunction" via "callback".
callback(5); // numIn 5