# path 路径操作模块
- path.basename
+ 获取一个路径的文件名(默认包含扩展名)
- path.dirname
+ 获取一个路径中的目录部分
- path.extname
+ 获取一个路径中的扩展名部分
- path.parse
+ 把一个路径转为对象
* root 根路径
* dir 目录
* base 文件名(含有后缀名)
* ext 后缀名
* name 不包含后缀名的文件名
- path.join
+ 当你需要进行路径拼接的时候,推荐使用这个方法
- path.isAbsolute 判断一个路径是否是绝对路径
# Node 中的其他成员
在每个模块中,除了 `require`、`exports` 等模块相关 API 之外,还有两个特殊的成员
- `__dirname` **动态获取** 可以用来获取当前文件模块所属目录的绝对路径
- `__filename` **动态获取** 可以用来获取当前文件的绝对路径
在文件操作中,使用相对路径是不可靠的,因为在 Node 中文件操作的路径被设计为相对于执行 node 命令所处的路径。
在文件操作中使用的相对路径都统一转换为**动态的绝对路径**。
> 补充:模块中的路径标识和这里的路径没关系,不受影响(相对于文件模块)。
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