Node.js process.chdir()方法
原文:https://www.geeksforgeeks.org/node-js-process-chdir-method/
process.chdir()方法是流程模块的内置应用编程接口，用于更改当前工作目录。
语法:
process.chdir( directory )
参数:该方法接受如上所述的单个参数，如下所述:
- Directory: is a required option to specify the directory path to which the current working directory is to be changed.
返回值:该方法成功时不返回值，但如果未能更改指定“没有此类文件或目录”的目录，则抛出异常。
下面的例子说明了 process.chdir()方法在 Node.js 中的使用:
例 1:
// Node.js program to demonstrate the
// process.chdir() Method
// Include process module
const process = require('process');
try {
// Change the directory
process.chdir('../os');
console.log("directory has successfully been changed");
} catch (err) {
// Printing error if occurs
console.error("error while changing directory");
}
输出:
directory has successfully been changed
例 2:
// Node.js program to demonstrate the
// process.chdir() Method
// Include process module
const process = require('process');
// Printing current directory
console.log("current working directory: "
+ process.cwd());
try {
// Change the directory
process.chdir('../os');
console.log("working directory after "
+ "changing: " + 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: C:\nodejs\g\os
注意:以上程序使用node filename.js命令编译运行。
参考:https://nodejs . org/API/process . html # process _ process _ chdir _ directory
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