process.cwd()方法是流程模块的内置应用程序编程接口,用于获取node.js流程的当前工作目录。
用法:
process.cwd()
参数:此方法不接受任何参数。
返回值:此方法返回一个字符串,该字符串指定node.js进程的当前工作目录。
以下示例说明了Node.js中process.cwd()方法的使用:
范例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());
输出:
Current working directory:C:\nodejs\g\process
范例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);
}
输出:
Current working directory:C:\nodejs\g\process Working directory after changing directory:C:\nodejs\g\os
注意:上面的程序将通过使用node filename.js
命令。
参考:
https://nodejs.org/api/process.html#process_process_cwd
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