大约有 40,000 项符合查询结果（耗时：0.0559秒） [XML]
Pycharm: run only part of my Python file
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Very glad you added this answer! I'm sure all RStudio and Spyder users will appreciate this
– KenHBS
Aug 21 '17 at 14:18
3
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Postfix日常维护队列管理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...删除。
例如id是0EAF3A9B 那么postsuper -d 0EAF3A9B
postsuper -d ALL 删除所有邮件
显示信件列表：postqueue -p
显示信件內容：postcat -q Queue_ID
刪除各別信件：postsuper -d Queue_ID
全部刪除：postsuper -d ALL
扣住信件：postsuper -h Queue_ID
回复...
PHP屏蔽警告错误，PHP不输出警告错误 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...较有用的，可以在PHP页面最前边加上一句：error_reporting(E_ALL & ~E_NOTICE); 让出错时只显示错误信息，不显示警告信息。
屏蔽的方法：
屏蔽PHP错误提示方法一、在有可能出错的函数前加@,然后or die("")
如：@mysql_connect(...) or die("Da...
设置用户默认权限 Umask命令详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...22 = 644
注：权限计算实际上是二进制位的与操作，参考All About the umask and Permissions。
操作bar.tar
shell> tar xf bar.tar
这次有点不同，我们要运行两次tar命令。
第一次：以root身份运行tar命令，然后查看目录和文件的权限，分别...
nvarchar和varchar相互转换、联合查询 - ORACLE - 清泛IT论坛，有思想、有深度
...后由 zqp2013 于 2015-2-27 16:42 编辑
场景：联合查询（union all）Oracle两张表，同一组字段的数据类型不一致，分别是nvarchar和varchar。
这时联合查询报错如下：ora12704：字符集不匹配。
解决方法：需要对数据类型进行转换。
Specif...
How to use '-prune' option of 'find' in sh?
... test (up to and including -prune) will return false for the stuff you actually want (ie: the stuff you don't want to prune out).
Here's an example:
find . -name .snapshot -prune -o -name '*.foo' -print
This will find the "*.foo" files that aren't under ".snapshot" directories. In this example, -na...
Run batch file as a Windows service
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NSSM is totally free and hyper-easy, running command prompt / terminal as administrator:
nssm install "YourCoolServiceNameLabel"
then a dialog will appear so you can choose where is the file you want to run.
to uninstall
nssm remov...
jQuery.click() vs onClick
...{ is better as it follows standard event registration model. (jQuery internally uses addEventListener and attachEvent).
Basically registering an event in modern way is the unobtrusive way of handling events. Also to register more than one event listener for the target you can call addEventListener...
jQuery UI Tabs - How to Get Currently Selected Tab Index
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Looks like this actually gives the default tab, not the currently selected tab. What am I missing? 42 votes can't be wrong, can they? jqueryui.com/demos/tabs/#option-selected
– Patrick Szalapski
Dec 9 '1...
Android Facebook style slide
...ough the transparent View.
The code is here, and the bottom two buttons (called HorzScrollWithListMenu and HorzScrollWithImageMenu) in the Launch activity show the best menus I could come up with:
Android sliding menu demo
Screenshot from emulator (mid-scroll):
Screenshot from device (full-scr...