process.cwd()方法是流程模塊的內置應用程序編程接口，用於獲取node.js流程的當前工作目錄。
用法:
process.cwd()
參數：此方法不接受任何參數。
返回值：此方法返回一個字符串，該字符串指定node.js進程的當前工作目錄。
以下示例說明了Node.js中process.cwd()方法的使用：
範例1：
// Node.js program to demonstrate the
// process.cwd() Method
// Include process module
const process = require('process');
// Printing current directory
console.log("Current working directory:",
process.cwd());輸出：
Current working directory:C:\nodejs\g\process
範例2：
// Node.js program to demonstrate the
// process.cwd() Method
// Include process module
const process = require('process');
// Printing current directory
console.log("Current working directory:",
process.cwd());
try {
// Change working directory
process.chdir('../');
console.log("Working directory after changing"
+ " directory:", process.cwd());
} catch (err) {
// printing error if occurs
console.error("error occured while changing"
+ " directory:", err);
}輸出：
Current working directory:C:\nodejs\g\process Working directory after changing directory:C:\nodejs\g\os
注意：上麵的程序將通過使用node filename.js命令。
參考：
https://nodejs.org/api/process.html#process_process_cwd
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