错误1010在ActionScript

问题描述

编译和运行我的程序后，我碰到运行时错误1010：

After compiling and running my program, i run into runtime error 1010:

TypeError: Error #1010: A term is undefined and has no properties.
at DC/updateScore()[DC::frame74:36]

这是一张code：

function updateScore(e:MouseEvent) {
var i:uint=0;
for(;i<balls.length;i++)
    if(balls[i]==e.target)
        break;
if(balls[i].isCorrect) {
    score++;
    timeField.text = new String(score);
}
else {
    score--;
    timeField.text = new String(score);
}
}

这是什么问题？我使用updateScore功能的MouseEvent侦听器，你可以看到。

What's the problem? I'm using updateScore function for MouseEvent listener, as you can see.

推荐答案

请把{和}到你的for循环！

Please put { and } to your for loop!

function updateScore(e:MouseEvent) {
    var i:uint=0;
    for(;i<balls.length;i++) {
            if(balls[i]==e.target)
                break;
        if(balls[i].isCorrect) {
            score++;
            timeField.text = new String(score);
        }
        else {
            score--;
            timeField.text = new String(score);
        }
    }
}

它允许不使用{和}一个循环，但那么只有第一条语句将excuted。

Its allowed not to use { and } with a loop but then only the first statement will be excuted.

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