如何使用 JavaScript 读取和写入文件? [英] How to read and write into file using JavaScript?

问题描述

谁能提供一些示例代码来使用 JavaScript 读取和写入文件?

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

推荐答案

为完整起见，OP 没有说明他希望在浏览器中执行此操作(如果他是，正如已经说明的那样，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.

请参阅此 有关 Javascript 文件类的文档

编辑:该链接指向现在已由 Oracle 移动的 Sun 文档.

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

为了跟上时代的步伐，这里是 FileSystem 类的 node.js 文档: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

Edit(2):您现在可以使用 HTML5 读取文件客户端: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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