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Super slow lag/delay on initial keyboard animation of UITextField
...otic hacks to get around this problem, try this: stop the debug session, close the app from multitasking, unplug your device from the computer and run the app normally by tapping its icon. I have seen at least two cases in which the delay only occurs while the device is plugged in.
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思维导图在快速阅读或是其它学习工作中的作用 - 创意 - 清泛网 - 专注C/C++...
...键知识点之间的连接线会引导您进行积极主动思考。快速系统的整合知识，可以为您的知识融会贯通创造了极其有利的条件。发展创造性思维和创新能力。发散思维是创新思维的核心。画思维导图的方法恰恰是发散思维的具体化...
How to use pip with Python 3.x alongside Python 2.x
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There's no Python 2 pip, that depends on the OS you're using. For example on Arch Linux pip --version states that's running on python 3.6 by default.
– Daniel Andrei Mincă
May 18 '17 at 9:12
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What is the difference between Python and IPython?
...project website:
IPython provides a rich toolkit to help you make the most out of using Python, with:
Powerful Python shells (terminal and Qt-based).
A web-based notebook with the same core features but support for code, text, mathematical expressions, inline plots and other rich media...
File input 'accept' attribute - is it useful?
...ndicates that files of the specified type are accepted.
A string whose first character is a U+002E FULL STOP character (.)
Indicates that files with the specified file extension are accepted.
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How to test an Internet connection with bash?
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on mac os this does not work via copy-paste: "-bash: ip: command not found ping: illegal option -- w"
– Benedikt S. Vogler
Feb 11 '16 at 13:30
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How to compare binary files to check if they are the same?
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The standard unix diff will show if the files are the same or not:
[me@host ~]$ diff 1.bin 2.bin
Binary files 1.bin and 2.bin differ
If there is no output from the command, it means that the files have no differences.
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What is the difference between a process and a thread?
...threads efficient).
Erlang uses the term "process" because it does not expose a shared-memory multiprogramming model. Calling them "threads" would imply that they have shared memory.
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improv...
How to add leading zeros for for-loop in shell? [duplicate]
...r i in {01..05}; do echo "$i"; done
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Disclaimer: Leading zeros only work in >=bash-4.
If you want to use printf, nothing prevents you from putting its result in a variable for further use:
$ foo=$(printf "%02d" 5)
$ echo "${foo}"
05
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httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for Se
I tried to restart my Apache server on CentOS 5.0 and got this message:
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