使用Javascript（无jQuery）从外部文件读取

我正在寻找一种方法来读取外部文本文件map.txt（分配在我自己的服务器中，而不是客户端的计算机中）并存储其中包含的数据在使用Javascript的二维数组map[][]中。使用Javascript（无jQuery）从外部文件读取

的map.txt文件将被写满数字和每次的行具有固定长度：

21123301201200 
12030201303321 
21312 
123123100
12312321221220

所以，我希望它是存储双维数组map在这样的方式map[0][0] = 2和map[13][4] = 0-在这个例子中。这甚至有可能做到吗？如果是这样，它是如何完成的？

谢谢！

来源

2012-02-04 federicot

您是在服务器端还是在客户端使用Javascript？你想让服务器或客户端读取文件吗？ – supertopi 2012-02-04 22:41:51

我在客户端使用Javascript，我希望客户端读取文件（但文件本身分配在服务器中，而不是客户端计算机中）。 – federicot 2012-02-04 23:06:53

您可以使用XMLHttpRequest来获取文件。看一看：http://www.quirksmode.org/js/xmlhttp.html

，利用此功能来创建数组：

function handleRequest(req){ 
    var a=req.responseText.split('\n'); 
    var len=a.length; 
    for(var i=0;i<len;i++){ 
     a[i]=a[i].split(''); 
    } 
    return a; 
}

该函数将返回：

[["2","1","1","2","3","3","0","1","2","0","1","2","0","0"], 
["1","2","0","3","0","2","0","1","3","0","3","3","2","1"], 
["2","2","3","2","1","3","2","1","0","2","1","3","1","2"], 
["1","2","3","1","2","3","1","0","0","0","1","2","3","0"], 
["1","2","3","1","2","3","2","1","2","2","1","2","2","0"]]

使用map[4][13]代替map[13][4]拿到最后一个元素在你的示例

来源

2012-02-04 23:09:53 stewe

谢谢你，那正是我正在寻找的！ – federicot 2012-02-04 23:21:44

使用Javascript（无jQuery）从外部文件读取

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