__dirname
- 类型：<string>
当前模块的目录名称。这与__filename的path.dirname()相同。
🌐 The directory name of the current module. This is the same as the
path.dirname() of the __filename.
示例：从 /Users/mjr 运行 node example.js
🌐 Example: running node example.js from /Users/mjr
console.log(__dirname);
// Prints: /Users/mjr
console.log(path.dirname(__filename));
// Prints: /Users/mjr