Question

我正在寻找一种方法来读取外部文本文件map.txt（在我自己的服务器中分配，而不是在客户端的计算机中），并将包含在其中的数据存储在二维数组中{ {1}}使用Javascript。

map[][]文件将填充数字，每个行的长度都是固定的：

map.txt

因此，我希望它以21123301201200 12030201303321 22321321021312 12312310001230 12312321221220和map的方式将其存储在二维数组map[0][0] = 2中 - 在此示例中。这甚至可能吗？如果是这样，它是如何完成的？

谢谢！

Answer 1

您可以使用XMLHttpRequest来获取该文件。看看：http://www.quirksmode.org/js/xmlhttp.html

并使用此函数创建数组：

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;
}

此功能应返回：

[["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]来获取示例中的最后一个元素

从Javascript中读取外部文件（不带jQuery）

1 个答案: