process.argv

• <string[]>

process.argv 属性返回数组，其中包含启动 Node.js 进程时传入的命令行参数。 第一个元素将是 process.execPath。 如果需要访问 argv[0] 的原始值，请参阅 process.argv0。 第二个元素将是正在执行的 JavaScript 文件的路径。 其余元素将是任何其他命令行参数。

例如，假设 process-args.js 有以下脚本：

// 打印 process.argv
process.argv.forEach((val, index) => {
  console.log(`${index}: ${val}`);
});

以如下方式启动 Node.js 进程：

$ node process-args.js one two=three four

将生成输出：

0: /usr/local/bin/node
1: /Users/mjr/work/node/process-args.js
2: one
3: two=three
4: four

• <string[]>

The process.argv property returns an array containing the command-line arguments passed when the Node.js process was launched. The first element will be process.execPath. See process.argv0 if access to the original value of argv[0] is needed. The second element will be the path to the JavaScript file being executed. The remaining elements will be any additional command-line arguments.

For example, assuming the following script for process-args.js:

// print process.argv
process.argv.forEach((val, index) => {
  console.log(`${index}: ${val}`);
});

Launching the Node.js process as:

$ node process-args.js one two=three four

Would generate the output:

0: /usr/local/bin/node
1: /Users/mjr/work/node/process-args.js
2: one
3: two=three
4: four