如何使用Javascript编写本地.txt

问题描述

我想在IE中使用javascript控制台编写.txt文件。
我已经有了我想在文件上写的字符串;所以，我想做的是：

  var refTab = document.getElementById（historymatch_tb0）; 
 var ttl; 
 for（var i = 0; row = refTab.rows [i]; i ++）
 {
 row = refTab.rows [i]; 
 for（var j = 0; col = row.cells [j]; j ++）
 {
 WriteInFile（col.innerHTML）; 
} 
 
} 
  

我没有的是函数WriteInFile因为我把它弄得这样：

 函数WriteInFile（a）
 {
 var fso = new的ActiveXObject（ Scripting.FileSystemObject的）; 
 var filename =c：\\Users\\ Riccardo \\\\.txt; 
 var f = fso.OpenTextFile（filename，2，true）; 
 f.WriteLine（a）; 
 f.Close（）; 
} 
  

这不起作用，
脚本不给我的错误，但文件是空的，控制台显示单词：undefined！
问题出在哪里？
谢谢！

解决方案

如果我理解正确，你真正要问的是如何保留信息在会话之间的js。我理解文件如何看起来很适合该任务。但由于浏览器对文件系统的访问权限非常有限，这并不理想。

您可以在浏览器的Web中保留所需的信息，而不是使用本地文件。存储。你可以稍后来找回它。有关详细信息，请参见 / p>

I want to write a .txt file using the javascript console in IE.I already have the strings that I would like to write on the file; so, what I would like to do is:

var refTab=document.getElementById("historymatch_tb0");
var  ttl;
for ( var i = 0; row = refTab.rows[i]; i++)
{
   row = refTab.rows[i];
   for ( var j = 0; col = row.cells[j]; j++ )
   {
       WriteInFile (col.innerHTML);
   }

}

What I don't have is the function WriteInFile because I triyed this:

 function WriteInFile (a)
 {
  var fso = new ActiveXObject("Scripting.FileSystemObject");
  var filename = "c:\\Users\\Riccardo\\a.txt";
  var f = fso.OpenTextFile(filename, 2, true);
  f.WriteLine(a);
  f.Close();
  }

this doesn't works,The script doesn't give me errors but the file is empty and The console shows the word: undefined!Where is the problem?Thanks!

解决方案

If I am understanding you correctly, what you are really asking is for a way to persist information in js between sessions. I understand how a file looks great for that task. But since browsers have a very limited access to the filesystem, that is not ideal.

Instead of using a local file, you can persist the information you need in the browser's Web Storage. You can come later and retrieve it. See http://www.html5rocks.com/en/features/storage for details

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