Question

所以我下周要上学，但我收到了错误。我问了我的T / A，但她也不确定。我已经浏览了谷歌和这个网站一段时间，但找不到任何帮助我的东西。确切的输出/错误是这样的：

1:false
usedfunction Function() {}
Maybe
TypeError: Error #1006: value is not a function.
    at Assign6/usedAnswer()
    at Assign6/ballEndDrag()

问题似乎在if语句

中

if(usedAnswer(msg)==false)

该程序甚至没有追踪

的值

trace(usedAnswer(msg));

任何帮助将不胜感激。非常感谢!!

package 
{
    import flash.display.*;
    import flash.events.*;


    public class Assign6 extends MovieClip
    {
        var ballDisplay:Array = new Array("Yes","No","It is certain!","Ask again","Try again","Better not","Most likely","Maybe","Reply is No","Doubtful","Outlook good");
        var usedList: Array = new Array();
        var magicInt:Number;

        public function Assign6()
        {

            magicBall.addEventListener( MouseEvent.MOUSE_DOWN, ballStartDrag );
            magicBall.addEventListener( MouseEvent.MOUSE_UP, ballEndDrag );
        }

        // When the user presses the mouse down on magicBall, this function is called
        function ballStartDrag( evt: MouseEvent )
        {
            magicBall.startDrag( );
            magicBall.magicText.text = " ";
            magicBall.eightDisplay.text = "8";
        }

        // When the user lets the mouse up on magicBall, this function is called
        function ballEndDrag( evt: MouseEvent )
        {
            magicBall.stopDrag( );
            magicBall.eightDisplay.text = " ";
            var checkVal = false;
            while(checkVal==false){
                trace("1:" + checkVal);
                trace("used" + usedAnswer);
                var msg:String = randomAnswer();
                trace(msg);
                trace(usedAnswer(msg));
                    if(usedAnswer(msg)==false){
                        usedList.push(ballDisplay[magicInt]);
                        checkVal = true;
                        trace("2" + checkVal);
                }
            }
        }

        //Display random answer in magicText
        function randomAnswer( ):String
        {
            magicInt = Math.round(Math.random() * 11);
            magicBall.magicText.text = ballDisplay[magicInt];
            return ballDisplay[magicInt];
        }

        // Check whether answer has already been used
        // Returns true if answer is in usedList and false if not
        function usedAnswer( answer: String ): Boolean
        {
            var i = 0;
            for (i==0; i<usedList.length(); i++)
            {
                if (answer == usedList[i])
                {
                    return true;
                }
            }
        return false;
        }
    }
}

Answer 1

var i = 0;
for (i==0; i<usedList.length(); i++)

应该是

for (var i=0; i<usedList.length; i++)

没有

或者，您可以使用indexOf替换for循环。

function usedAnswer( answer: String ): Boolean
{
    return usedList.indexOf(answer) !== -1;
}

Answer 2

for-loop和while循环中存在错误。

替换此

for (i==0; i<usedList.length(); i++)

与

for (i=0; i<usedList.length; i++)

Answer 3

扩展@BarışUşaklı的回答：

您的usedAnswer()函数引用usedList这是一种数组类型。在Actionscript 3中，数组具有length属性，您可以引用它而不是可以调用的length()函数。您可以在Array as3docs中阅读更多内容。

您的实际解决方法很简单：

var i = 0;
for (i==0; i<usedList.length; i++)

Actionscript 3.0，TypeError：错误＃1006：值不是函数

3 个答案: