Node.js path.resolve()方法
原文:https://www.geeksforgeeks.org/node-js-path-resolve-method/
path.resolve()方法用于将一系列路径段解析为绝对路径。它的工作原理是从右到左处理路径序列，预先考虑每个路径，直到创建绝对路径。生成的路径被规范化，尾部斜线根据需要被删除。 如果没有给定路径段作为参数，则使用当前工作目录的绝对路径。 语法:
path.resolve( [...paths] )
参数:该函数接受一个参数，如上所述，如下所述:
- 路径:这是一系列文件路径，它们将被一起解析以形成绝对路径。如果此参数不是字符串值，它将引发类型错误。
返回值:返回绝对路径的字符串。
下面的程序说明了 Node.js: 中的 path.resolve()方法
例 1:
Node.js
// Node.js program to demonstrate the
// path.resolve() Method
// Import the path module
const path = require('path');
console.log("Current directory:", __dirname);
// Resolving 2 path-segments
// with the current directory
path1 = path.resolve("users/admin", "readme.md");
console.log(path1)
// Resolving 3 path-segments
// with the current directory
path2 = path.resolve("users", "admin", "readme.md");
console.log(path2)
// Treating of the first segment
// as root, ignoring the current directory
path3 = path.resolve("/users/admin", "readme.md");
console.log(path3)
输出:
Current directory: G:\tutorials\nodejs-path-resolve
G:\tutorials\nodejs-path-resolve\users\admin\readme.md
G:\tutorials\nodejs-path-resolve\users\admin\readme.md
G:\users\admin\readme.md
例 2:
Node.js
// Node.js program to demonstrate the
// path.resolve() Method
// Import the path module
const path = require('path');
console.log("Current directory:", __dirname);
// Normalization of the absolute paths
path1 = path.resolve("users", "..", "readme.md");
console.log(path1)
path2 = path.resolve("users", "admin",
"..", "files", "readme.md");
console.log(path2)
path3 = path.resolve("users", "admin",
"..", "files", "..", "readme.md");
console.log(path3)
输出:
Current directory: G:\tutorials\nodejs-path-resolve
G:\tutorials\nodejs-path-resolve\readme.md
G:\tutorials\nodejs-path-resolve\users\files\readme.md
G:\tutorials\nodejs-path-resolve\users\readme.md
参考:T2】https://nodejs.org/api/path.html#path_path_resolve_paths
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