路径相关函数
path.basename('/foo/bar/baz/asdf/quux.html');
// Returns: 'quux.html'
path.basename('/foo/bar/baz/asdf/quux.html', '.html');
// Returns: 'quux'
path.dirname('/foo/bar/baz/asdf/quux');
// Returns: '/foo/bar/baz/asdf'
A TypeError is thrown if path is not a string.
path.join('/foo', 'bar', 'baz/asdf', 'quux', '..');
// Returns: '/foo/bar/baz/asdf'
path.join('foo', {}, 'bar');
// Throws 'TypeError: Path must be a string. Received {}'
For example, on POSIX:
'foo/bar/baz'.split(path.sep);
// Returns: ['foo', 'bar', 'baz']
On Windows:
'foo\\bar\\baz'.split(path.sep);
// Returns: ['foo', 'bar', 'baz']
创建目录和删除目录
var fs = require("fs");
console.log("Going to create directory /tmp/test");
fs.mkdir('/tmp/test',function(err) {
if (err) {
return console.error(err);
}
console.log("Directory created successfully!");
});
fs.rmdir(path, callback)
遍历目录文件的方法
传统的同步方法:
// sync version
function walkSync(currentDirPath, callback) {
var fs = require('fs'),
path = require('path');
fs.readdirSync(currentDirPath).forEach(function (name) {
var filePath = path.join(currentDirPath, name);
var stat = fs.statSync(filePath);
if (stat.isFile()) {
callback(filePath, stat);
} else if (stat.isDirectory()) {
walkSync(filePath, callback);
}
});
}
walkSync('path/to/root/dir', function(filePath, stat) {
// do something with "filePath"...
});
异步方法:
// async version with basic error handling
function walk(currentDirPath, callback) {
var fs = require('fs'),
path = require('path');
fs.readdir(currentDirPath, function (err, files) {
if (err) {
throw new Error(err);
}
files.forEach(function (name) {
var filePath = path.join(currentDirPath, name);
var stat = fs.statSync(filePath);
if (stat.isFile()) {
callback(filePath, stat);
} else if (stat.isDirectory()) {
walk(filePath, callback);
}
});
});
}
walk('path/to/root/dir', function(filePath, stat) {
// do something with "filePath"...
});