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iOS开发调试技巧总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...语言、不同IDE、不同平台的调试，有同性也有个性。今天我们就来学习一下iOS开发中的调试技巧，语言暂用为OC，IDE当然是强大的Xcode。首先说明下，Xcode已经为我们调试项目提供了极大的方便。
【1.普通断点】
断点(Breakpoint)绝...
How do you round a float to two decimal places in jruby
...decimal, sprintf rounds up on 6, not on 5, for instance, sprintf("%.3f", 1.2225) will be "1.222", sprintf("%.3f", 1.2226) will be "1.223", if that matters to you, stick to using #round
– ecoding5
Feb 26 '16 at 18:05
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Email Address Validation in Android on EditText [duplicate]
...@domain.com", "email@domain", "email@111.222.333.44444", "email@domain..com"
– martinseal1987
May 10 at 7:16
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Exception 'open failed: EACCES (Permission denied)' on Android
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Google has a new feature on Android Q: filtered view for external storage. A quick fix for th...
Convert InputStream to byte array in Java
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Rich SellerRich Seller
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Get absolute path of initially run script
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zerkmszerkms
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How to put a line comment for a multi-line command [duplicate]
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Kos
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answered Oct 9 '12 at 10:01
Marwan Alsabbagh...
初窥InnoDB的Memcached插件 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...件前些年，HandlerSocket的横空出世让人们眼前一亮，当时我还写了一篇文章介绍了其用法梗概，时至今日，由于种种原因，HandlerSocket并没有真...前些年，HandlerSocket的横空出世让人们眼前一亮，当时我还写了一篇文章介绍了其用法...
How do you do a simple “chmod +x” from within python?
... 2014 hello.txt
You can bitwise or with 0o111 to make all executable, 0o222 to make all writable, and 0o444 to make all readable.
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document.getElementById vs jQuery $()
...On the other hand, the
jQuery averaged about 200ms (ranging from 181ms to 222ms on about 15 runs).
From this simple test you can see that the jQuery took about 6 times as long.
Of course, that is over 10000 iterations so in a simpler situation I would probably use the jQuery for ease of use and al...