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社区精华问答:整理自 bbs.tsingfun.com 社区的优质帖子,一帖一文,涵盖 App Inventor 2 开发中的基础知识、组件用法、技巧分享与常见错误解决。...
Convert JavaScript string in dot notation into an object reference
...,'etc']) #works with both strings and lists
5
> index(obj,'a.b.etc', 123) #setter-mode - third argument (possibly poor form)
123
> index(obj,'a.b.etc')
123
...though personally I'd recommend making a separate function setIndex(...). I would like to end on a side-note that the original...
Can I replace groups in Java regex?
...s) {
// replace with "%" what was matched by group 1
// input: aaa123ccc
// output: %123ccc
System.out.println(replaceGroup("([a-z]+)([0-9]+)([a-z]+)", "aaa123ccc", 1, "%"));
// replace with "!!!" what was matched the 4th time by the group 2
// input: a1b2c3d4e5
// outp...
Stop caching for PHP 5.5.3 in MAMP
Installed MAMP on a new Macbook with PHP 5.5.3.
9 Answers
9
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编译不成功是什么原因? - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!
...译——安卓应用安装程序.apk,出错,实在不知道哪里有问题,程序里0错误、0警告,换了个浏览器也是一样,请各位大师帮忙,谢谢!错误提示如下:
无法编译该项目,
编译器输出的错误信息为
________Preparing application icon
___...
Using Java to find substring of a bigger string using Regular Expression
..._]*\s*\[([^\]]*)\]
This will validate things like Foo [Bar], or myDevice_123["input"] for instance.
Main issue
The main problem is when you want to extract the content of something like this:
FOO[BAR[CAT[123]]+DOG[FOO]]
The Regex won't work and will return BAR[CAT[123 and FOO.
If we change th...
马云:互联网时代已经过去20年,接下来30年才是关键 - 资讯 - 清泛网 - 专...
...母借钱,想朋友借,如果大家都不借给你,说明你人品有问题。”
随着时间推进,马云越发逸兴遄飞,妙语不断。他甚至很认真对近2000名年轻人说:“你们要在一两年超过我们,是不可能的,除非我们实在愚蠢。但是如果给你...
简单谈谈软件配置管理 - 项目管理 - 清泛网 - 专注C/C++及内核技术
...QA监督配置审计是否按照标准流程来进行,并记录不一致问题。
f)每次配置审计要将审计结果记录到《配置审计报告》中,记录和跟踪配置审计检查出的问题。
物理审计的方法:
根据《配置审计检查单》去检查,该有的配置...
PHP server on local machine?
I'm trying to build a PHP site and I'm wanting to test my PHP files without uploading them to my host. Basically testing them on my own machine before I upload them. How do I do that?
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移动前端开发之viewport的深入理解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...是,devicePixelRatio在不同的浏览器中还存在些许的兼容性问题,所以我们现在还并不能完全信赖这个东西,具体的情况可以看下这篇文章。
devicePixelRatio的测试结果:
三、PPK的关于三个viewport的理论
ppk大神对于移动设备上...
