nodejs 命令行解析器 comander 介绍
直接举例：
安装 commander
使用下面的命令，创建路径，安装 commander 包：
mkdir excd exnode initnode install commander
创建命令文件
创建命令文件 ex1.js
#!/usr/bin/env nodevar program = require('commander')program.version('0.1.1').option('-p, --peppers', 'Add peppers').option('-P, --pineapple', 'Add pineapple').option('-b, --bbq-sauce', 'Add bbq sauce').option('-c, --cheese [type]', 'Add the specified type of cheese [marble]', 'marble').parse(process.argv)console.log('You ordered a pizza with:')if (program.peppers) console.log(' - peppers')if (program.pineapple) console.log(' - pineapple')if (program.bbqSauce) console.log(' - bbq')console.log(' - %s cheese', program.cheese)
使其可执行：
chmod +x ex1.js
运行结果
[MAIN] ➜ ~/25.ser git:(master) ✗ ./ex1.jsYou ordered a pizza with:- marble cheese[MAIN] ➜ ~/25.ser git:(master) ✗ ./ex1.js -pYou ordered a pizza with:- peppers- marble cheese[MAIN] ➜ ~/25.ser git:(master) ✗ ./ex1.js -pPYou ordered a pizza with:- peppers- pineapple- marble cheese[MAIN] ➜ ~/25.ser git:(master) ✗ ./ex1.js -p -PYou ordered a pizza with:- peppers- pineapple- marble cheese[MAIN] ➜ ~/25.ser git:(master) ✗ ./ex1.js -p -P -c FetaYou ordered a pizza with:- peppers- pineapple- Feta cheese
如果用 node.js 写命令行，请看这篇文章：https://blog.csdn.net/henryhu712/article/details/84262290
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