覃健祥的学习笔记,各种几十分钟入门的文档
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覃健祥的学习笔记,各种几十分钟入门的文档
覃健祥的学习笔记,各种几十分钟入门的文档
Java 里面不能定义属性?可以定义呀
RT
搜索结果只有一条:ToolbarSearchViewController.m,点文件名下方被高亮的“Performed”字串,右侧代码编辑区会自动打开这个文件,并滚动屏幕,使包含“Performed”的这一行出现在编辑区的中间。
修改双引号里的字串,随便改成啥,然后按“Command S”保存。
修改了里面的字串后仍然fail了,怎么破。(ps. ios菜鸟初学,有c语言基础)
带独立界面是指像mail一样,进入mail程序之后就进入了mail的程序界面,输入的命令就无需要一长条。
打算用PHP写这个Shell程序,不知是否会遇到什么问题?
望指教
30min_guides/ios.md
里面的 Xcode下载地址 已经失效
for skill in Ada Coffe Action Java do
echo "I am good at ${skill}Script"
done
缺了个分号,应该是
for skill in Ada Coffe Action Java; do
for skill in Ada Coffe Action Java do
echo "I am good at ${skill}Script"
done
string="alibaba is a great company"
echo `expr index "$string" is
if condition1
then
command1
elif condition2
command2
else
commandN
fi
在condition2后面是不是少个then呢
虽然前者通常情况下也好使
hi,
请教下, 谢了!
看了下面的文章, 想试下, 嘿嘿.
https://techsviewer.com/how-to-install-mac-os-x-el-capitan-on-pc-on-virtualbox/
Hua
但是许多点没展开 只举了个不完全的个例 而且快更新啊 。。。
string="alibaba is a great company"
echoexpr index "$string" is
不是查找单词,而是查找字符,在centos 6.5 中的输出结果是3
sh里的多行注释不是
:EOF
注释的内容
EOF
?为啥说没有多行注释
你看:
➜ ~ which which
which: shell built-in command
➜ ~ which cd
cd: shell built-in command
➜ ~ which mkdir
/bin/mkdir
➜ ~ which touch
/usr/bin/touch
类似的还有 cd alias bg fg echo
查找子字符串
string="alibaba is a great company"
echo expr index "$string" is
#输出:8,这个语句的意思是:找出单词is在这名话中的位置
试了下, 输出好像跟描述的不符.
"expr index strings chars,只要chars中的任意一个字符在strings中出现,就返回所在的位置,否则返回0"
是这个意思吗?
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.