大约有 4,000 项符合查询结果（耗时：0.0173秒） [XML]
Does Python have a ternary conditional operator?
...ing concepts. A convincing argument is the % operator, mimicking the way "mod" is used in math would have been a disaster. So no, I don't accept your argument. It is like adhering to imperial units. Groetjes Albert
– Albert van der Horst
Jun 17 '18 at 12:50
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How Can I Set the Default Value of a Timestamp Column to the Current Timestamp with Laravel Migratio
...(see PR 10962 and commit 15c487fe) you can use the new useCurrent() column modifier method to set the CURRENT_TIMESTAMP as a default value for a column:
$table->timestamp('created_at')->useCurrent();
Back to the question, on MySQL you could also use the ON UPDATE clause through DB::raw():
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ETag vs Header Expires
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Etag and Last-modified headers are validators.
They help the browser and/or the cache (reverse proxy) to understand if a file/page, has changed, even if it preserves the same name.
Expires and Cache-control are giving refresh information...
Multi-line string with extra space (preserved indentation)
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Thanks for explaining why mod sees extra space when using “echo” command. This answer also is working well when using in bash script (as oppose to interactive shell session). Feel like this is the real answer and should be an accepted answer.
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PHP exec() vs system() vs passthru()
...ome to the situation where I had to do very expensive computations. No PHP-Module were (is) available for that. I wrote my own C program and I invoke it with passthru(). Sometimes portability can be less important than other things. Depends on the project.
– Paolo
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程序员之网络安全系列（五）：数字证书以及12306的证书问题 - 更多技术 - ...
...e private.），我猜他们是为了性能？？
但是，就算浏览器地址栏的锁不能变绿，我们还得订票不是吗？
我觉得12306可能需要一个操作系统内置的认证机构来发一个证书，不然普通的用户根本不知道怎么安装证书，如果不使用https...
Can I install Python windows packages into virtualenvs?
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On Windows 7, 64 bit, with 64 bit Python had to modify regpath to regpath = "SOFTWARE\\Wow6432Node\\Python\\Pythoncore\\%s\\" % (version)
– Oleksiy
May 25 '14 at 5:59
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str performance in python
...%s')
3 LOAD_FAST 0 (x)
6 BINARY_MODULO
7 RETURN_VALUE
Of course the above is true for the system I tested on (CPython 2.7); other implementations may differ.
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Bash Templating: How to build configuration files from templates with Bash?
...RI="/hows-it-goin"; MONITOR_IP="10.10.2.15";
cat >/etc/apache2/conf.d/mod_status.conf <<EOF
<Location ${STATUS_URI}>
SetHandler server-status
Order deny,allow
Deny from all
Allow from ${MONITOR_IP}
</Location>
EOF
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App Inventor 2 DynamicComponents 拓展：动态创建AI2组件对象 · App Inventor 2 中文网
...= new QRCode("qrcode", { text: window.location.href + "?f=share", //URL地址 width: 150, height: 150, colorDark: '#000000', //二维码颜色 colorLight: "#ffffff" //背景颜色}); App Inventor 2 中文网 MIT同步更新的中文本土化 积木式在线App开发平台！ ...