搜索框 as3 无法正常工作

Question

我有一个问题，无论我输入什么文本，甚至是空白 space，我仍然进入第 170 帧，如你所见，我在那里输入 171 帧，如果我输入 "therefore"，它就会进入171，看起来它工作正常，即使我输入了错误的文本，它也会转到第 170 帧，但我找不到问题，我也不知道我是否应该做一个 else 语句，所以如果这个词不在列表中，它就会去到其他框架，谢谢队友

 var i:int = 0;
var names:Array = new Array("therefore","disciples","nations","baptizing","father","son","holy spirit");
var frames:Array = new Array("171","170","170","170","170","170","170","170");

button_140.addEventListener(MouseEvent.CLICK, fl_MouseClickHandler_4);

function fl_MouseClickHandler_4(event:MouseEvent):void
{
var searchtext:String = searchtext.text.toLowerCase();
findInArray(searchtext);
gotoAndStop(frames[i]);
}

function findInArray(str:String):int
{
for(i=0; i < names.length; i++)
{

        if(names[i] == str)
        {
    return i;
}
}
return 0;
}

Answer 1

为什么你总是转到第 170 帧：

让我们看看你的函数fl_MouseClickHandler_4:

findInArray(searchtext);//string won't be found so "i" would be 7 (the last index in array)
gotoAndStop(frames[i]);//so it goes to frame 170

针对您的代码的修复：
函数 fl_MouseClickHandler_4:

function fl_MouseClickHandler_4(event:MouseEvent):void
{
var searchtext:String = searchtext.text.toLowerCase();
var index:int=findInArray(searchtext);

if(index==-1){
    //do something when frame not found
}
else{
    gotoAndStop(frames[index]);
}

函数findInArray：

function findInArray(str:String):int
{
for(i=0; i < names.length; i++)
{

    if(names[i] == str)
    {
return i;//return the found index
}
}
return -1;//return -1 if nothing found
}

希望对您有所帮助...

编辑：

您不需要创建函数来查找数组中的值。您可以使用 Array class 内置方法 indexOf() 查找数组中某项的索引：有关详细信息，请参阅 AS3 manual。

theArray.indexOf(theValue);

returns 值的索引。如果 theValue 不在 theArray 中，returns -1.

在下面测试这个例子：

//# declare variables outside of function (make once & re-use) 
var searchtext:String = "";
var index:int = 0; 

//# after updating searchtext string with user-text then run function below

function fl_MouseClickHandler_4(event:MouseEvent):void
{
    searchtext = searchtext.text.toLowerCase();
    index = names.indexOf(searchtext); //test with "holy spirit"

    if(index == -1)
    {
        trace("index is : -1 : No match found");
        //do something when frame not found
    }
    else
    {
        trace("index is : " + index + " ::: result is : " + (frames[index]) );
        gotoAndStop( frames[index] );
    }
}

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