node.js中path路径模块的使用

path模块是node.js中处理路径的核心模块。可以很方便的处理关于文件路径的问题。

join() 将多个参数值合并成一个路径

1 2 const path = require(path); console.log(path.join(./a, b, c));

basename() 获取路径中的文件名

1 2 3 4 5 const path = require(path); //获取文件名，包含扩展名 console.log(path.basename(./a/b/c/1.txt)); //获取文件名，去掉扩展名 console.log(path.basename(./a/b/c/1.txt, .txt));

extname() 获取路径中的扩展名

1 2 3 const path = require(path); //获取文件中的扩展名 console.log(path.extname(./a/b/c/1.txt));

sep 返回操作系统指定的路径分割符

1 2 3 4 const path = require(path); console.log(path.sep); console.log(path.win32.sep); console.log(path.posix.sep);

delimiter 返回操作系统环境变量的分割符

1 2 3 4 const path = require(path); console.log(path.delimiter); console.log(path.win32.delimiter); console.log(path.posix.delimiter);

normalize() 将非标准的路径转换成标准路径，解析像 . ，..，或多个杠。

1 2 3 const path = require(path); console.log(path.normalize(./a/b/../../c)); console.log(path.normalize(./a//b//.././c));

resolve() 返回绝对路径

1 2 const path = require(path); console.log(path.resolve(./a/b/../c/./d));

isAbsolute() 判断是否为绝对路径

1 2 3 const path = require(path); console.log(path.isAbsolute(./a/b/../c/./d)); console.log(path.isAbsolute(E:/a));

parse() 解析一个路径，返回一个带有属性的对象

1 2 const path = require(path); console.log(path.parse(./a/b/../c/./d/1.txt));

relative() 返回参数一到参数二的相对路径

1 2 const path = require(path); console.log(path.relative(./a/b/c, ./a/d));