actionscript-3 - AS3 错误 1084 语法错误，在点之前需要 rightparen

Question

我对这整个 as3 的事情是新手，我非常挣扎。在过去的两天里，我一直坐着，试图做一些我可以想象的事情，以便让其他阅读本文的人变得简单。我正在尝试创建一个游戏，其中我有一个由键盘键控制的滑板。但是，当我输入此代码时，我收到 1084 错误，请在我将笔记本电脑扔出窗外之前提供帮助。谢谢！！

package {
    import flash.display.*;
    import flash.events.*;enter code here

    public class skatefate extends MovieClip {

            var the_skater:Sprite = new Sprite();
            the_skater.addChild:(skater);



            var moveLeft:Boolean = false;
            var moveRight:Boolean = false;
            var moveUp:Boolean = false;
            var moveDown:Boolean = false;

            stage.addEventListener(KeyboardEvent.KEY_DOWN, keyPressedDown);
            stage.addEventListener(KeyboardEvent.KEY_UP, keyPressedUp);
            stage.addEventListener(Event.ENTER_FRAME, moveskater);

            function keyPressedDown(event:KeyboardEvent) {
                if (event.keyCode == 37) {
                moveLeft = true;
            } else if (event.keyCode == 39) {
                moveRight = true;
            } else if (event.keyCode == 65) {
                moveUp = true;
            } else if (event.keyCode == 90) {
                moveDown = true;
    }
}


            function keyPressedUp(event:KeyboardEvent) {
                if (event.keyCode == 37) {
                moveLeft = false;
            } else if (event.keyCode == 39) {
                moveRight = false;
            } else if (event.keyCode == 65) {
                moveUp = false;
            } else if (event.keyCode == 90) {
                moveDown = false;
    }
}


            function moveskater(event:Event) {
            var speed:uint = 20;

            if (moveLeft) {
            skater.x -= speed;
            if (skater.x < 0){
        skater.x = 800;
        }
    }
            }
    if (moveRight) {
        skater.x += speed;
        if (skater.x > 800){
        skater.x = 0;
        }
    }
    if (moveUp) {
        skater.y -= speed;
        if (skater.y > 0){
        skater.y = 0;               
    }
    }
    if (moveDown) {
        skater.y += speed;
        if (skater.y > 0){
            skater.y = 0;


            }
    }

score 0 · Accepted Answer

我尝试了您的代码，但没有收到您的错误。您的示例会引发其他错误和问题。所以我的建议是这两件事..

正确构建代码...

package  
{

//IMPORTS go here

//Declare your Class
public class skatefate extends MovieClip 
{
    //VARS go here 
    //*******************************************************************
    //note: later you may also add other VARS inside functions as needed 
    //(but were not originally put (declared) in this section)
    //*******************************************************************

    //Declare main function of your Class (must have same name as Class (.as)
    public function skatefate() 
    {
        //Constructor code here
        //************************************************************************
        // Your main program code and related functions (K/board etc) go here and 
        // will reference your VARS declared above in public Class construction)
        //************************************************************************

    } //End of (public) Function

} //End of (public) Class 

} //End of Package

万一你仍然挣扎，你的代码的这个编辑应该编译。从那里你可以学习和学习。希望在这个残酷的世界中，还有一台笔记本电脑能够生存下来。

package 
{
    import flash.display.*;
    import flash.events.*; //enter code here

//Declare your Class
public class skatefate extends MovieClip {

var the_skater:Sprite = new Sprite();
var skater:Sprite = new Sprite(); //hide line if skater exists already (i.e in  Library)
var speed:uint = 20;

//Declare main function of your Class
public function skatefate () 
{
    var moveLeft:Boolean = false;
    var moveRight:Boolean = false;
    var moveUp:Boolean = false;
    var moveDown:Boolean = false;

    stage.addEventListener(KeyboardEvent.KEY_DOWN, keyPressedDown);
    stage.addEventListener(KeyboardEvent.KEY_UP, keyPressedUp);
    stage.addEventListener(Event.ENTER_FRAME, moveskater);


    the_skater.addChild(skater);
    addChild(the_skater); //adds to stage

    function keyPressedDown (event:KeyboardEvent) 
    {
        if (event.keyCode == 37)        { moveLeft = true; } 
        else if (event.keyCode == 39)   { moveRight = true; }
        else if (event.keyCode == 65)   { moveUp = true; } 
        else if (event.keyCode == 90)   { moveDown = true; }
    }

    function keyPressedUp (event:KeyboardEvent) 
    {
        if (event.keyCode == 37)        { moveLeft = false; } 
        else if (event.keyCode == 39)   { moveRight = false; }
        else if (event.keyCode == 65)   { moveUp = false; } 
        else if (event.keyCode == 90)   { moveDown = false; }
    }

    function moveskater(event:Event) 
    {
        //var speed:uint = 20; //already declared at top
        //speed = 20; // later change 'speed' this way by updating number

        if (moveLeft)   {
                            skater.x -= speed;
                            if (skater.x < 0)
                            { skater.x = 800; }
                        }

        if (moveRight)  {
                            skater.x += speed;
                            if (skater.x > 800)
                            { skater.x = 0; }
                        }

        if (moveUp)     {
                            skater.y -= speed;
                            if (skater.y > 0)
                            { skater.y = 0; }
                        }

        if (moveDown)   {   skater.y += speed;
                            if (skater.y > 0)
                            { skater.y = 0; }
                        }
    } //close 'moveskater' function


} //End of your (public) Function

} //End of your (public) Class 

} //End of Package

希望能帮助到你。在评论中寻求建议，如果对您有用，请不要忘记勾选“正确答案”。这就是我们在 Stack Overflow 上说“谢谢”的方式。

actionscript-3 - AS3 错误 1084 语法错误，在点之前需要 rightparen

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