如何使用JavaScript读写文件？ [英] How to read and write into file using JavaScript?

问题描述

有人可以提供一些示例代码来使用JavaScript读取和写入文件吗？

Can anybody give some sample code to read and write a file using JavaScript?

推荐答案

为了完整性，OP不会他希望在浏览器中执行此操作（如果他是，如通常所说，通常是不可能的）

For completeness, the OP does not state he is looking to do this in a browser (if he is, as has been stated, it is generally not possible)

然而，javascript本身确实允许这样做;它可以通过服务器端javascript来完成。

However javascript per se does allow this; it can be done with server side javascript.

看到这个 Javascript文件类的文档

See this documentation on the Javascript File class

编辑：该链接指向现在已被Oracle移动的Sun文档。

Edit: That link was to the Sun docs that now have been moved by Oracle.

为了跟上时间，请参阅FileSystem类的node.js文档：< a href =http://nodejs.org/docs/latest/api/fs.html =noreferrer> http://nodejs.org/docs/latest/api/fs.html

To keep up with the times here's the node.js documentation for the FileSystem class: http://nodejs.org/docs/latest/api/fs.html

编辑（2）：您现在可以使用HTML5读取客户端文件： http://www.html5rocks.com/en/tutorials/file/dndfiles/

Edit(2): You can read files client side now with HTML5: http://www.html5rocks.com/en/tutorials/file/dndfiles/

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