node 模块 fs-extra

TOC

• fs模块的扩展，提供了更多便利的 API，并继承了 1、复制文件

  copy(src, dest, [options], callback)

  示例：

  var fs = require('fs-extra'); fs.copy('/tmp/myfile', '/tmp/mynewfile', function(err) { if (err) return console.error(err) console.log("success!") }); fs.copy('/tmp/mydir', '/tmp/mynewdir', function(err) { if (err) return console.error(err) console.log("success!") });

  2、创建文件、目录

  ensureFile(file, callback) createFile(file, callback) createFileSync(file), ensureFileSync(file) ensureDir(dir, callback) ensureDirSync(dir)

  示例：

  var fs = require('fs-extra'); var file = '/tmp/this/path/does/not/exist/file.txt' fs.ensureFile(file, function(err) { console.log(err) // => null  //file has now been created, including the directory it is to be placed in  }); var dir = '/tmp/this/path/does/not/exist' fs.ensureDir(dir, function(err) { console.log(err) // => null  //dir has now been created, including the directory it is to be placed in  });

  3、移动文件、目录

  move(src, dest, [options], callback)

  示例：

  var fs = require('fs-extra') fs.move('/tmp/somefile', '/tmp/does/not/exist/yet/somefile', function(err) { if (err) return console.error(err) console.log("success!") })

  4、写入文件

  outputFile(file, data, callback)

  示例：

  var fs = require('fs-extra') var file = '/tmp/this/path/does/not/exist/file.txt' fs.outputFile(file, 'hello!', function(err) { console.log(err) // => null  fs.readFile(file, 'utf8', function(err, data) { console.log(data) // => hello!  }) })

  5、删除文件、目录

  remove(dir, callback)

  示例：

  var fs = require('fs-extra') fs.remove('/tmp/myfile', function(err) { if (err) return console.error(err) console.log("success!") }) fs.removeSync('/home/jprichardson')