$*和$@都表示传递给函数或脚本的所有参数,不被双引号("")包含时,都以"$1 $2... $n"的形式输出所有参数
当它们被双引号("")包含时,"$*"会将所有的参数作为一个整体,以"$1 $2...$n"的形式输出所有参数,"$@"会将各个参数分开,以"$1" "$2"... "$n"的形式输出所有参数
shift命令每执行一次 变量的个数($#)剪一 (之前的$1变量被销毁,之后的$2就变成了$1),而变量值提前一位。
同理,shift n后,前n位参数都会被销毁
etcd 源码解读
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.