Question

我使用此代码加载脚本：

if(!checkAlreadyLoaded || !Engine.Loader.isLoaded(file))
    {

        var newScript = document.createElement("script");
        newScript.onload = function()
        {
            if(onLoad != undefined && onLoad != null)
                onLoad();
        };
        newScript.type = "text/javascript"
        newScript.src = file;


        if(newScript != undefined)
            document.getElementsByTagName("head")[0].appendChild(newScript);
        else
            alert("Failed to load!");
    }

并且它可以完美地加载脚本，但是当我尝试访问任何脚本时，脚本是未定义的。但是，如果我将它们添加到html页面的头部，我将添加加载程序，它可以正常工作。

<head>

    <script src="scripts/Engine/Loader.js" type="text/javascript"> </script>

</head>

以下是发生问题的代码：

    loadScript(file)
    {
        if(!checkAlreadyLoaded || !Engine.Loader.isLoaded(file))
        {

        var newScript = document.createElement("script");
        newScript.onload = function()
        {
            if(onLoad != undefined && onLoad != null)
                onLoad();
        };
        newScript.type = "text/javascript"
        newScript.src = file;


        if(newScript != undefined)
            document.getElementsByTagName("head")[0].appendChild(newScript);
        else
            alert("Failed to load!");
       }
    }     

    loadEngine: function()
    {       
    var engineScripts =
    [
        "scripts/Engine/GameLoop.js",
        "scripts/Engine/Utilities.js",
        "scripts/Engine/Client.js",
        "scripts/Engine/Renderer.js",
        "scripts/Engine/Input.js",
    ];

    for(var i = 0; i < engineScripts.length; i++)
        Engine.Loader.loadScript(engineScripts[i]);
    GameLoop gameLoop = new GameLoop(new Client("ws:/192.168.105:8080"), new Renderer());
    gameLoop.initialise();
}

我做错了什么？谢谢！

外部加载的javascript函数未定义

0 个答案: