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构建高并发高可用的电商平台架构实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...对域名、目录结构、正则规则针对http做一些分流。通过端口检测到服务器内部的故障，比如根据服务器处理网页返回的状态码、超时等等，并且会把返回错误的请求重新提交到另一个节点，不过其中缺点就是不支持url来检测。...
Why does HTML5 form-validation allow emails without a dot?
...ould have a ^, denoting it should start matching from the beginning of the string and also accept upper case: ^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+$
– Kohjah Breese
Dec 6 '18 at 14:18
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CentOS+Nginx+PHP+MySQL详细配置(图解) - PHP - 清泛IT论坛，有思想、有深度
...请求传达给PHP，Nginx在得到*.php请求时，会把请求通过9000端口传给PHP。下面我们把这些注释给去掉即可，如下图
注：上面的/usr/local/nginx/html 是我们PHP网站放置的路径
那么只有Nginx自己知道咋找PHP了还不行...
__FILE__, __LINE__, and __FUNCTION__ usage in C++
...Y_FUNCTION__ when it's available for the extra class scoping.
PS:
static string getScopedClassMethod( string thePrettyFunction )
{
size_t index = thePrettyFunction . find( "(" );
if ( index == string::npos )
return thePrettyFunction; /* Degenerate case */
thePrettyFunction . erase( in...
C#: how to get first char of a string?
Can the first char of a string be retrieved by doing the following?
13 Answers
13
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MySQL ERROR 1045 (28000): Access denied for user 'bill'@'localhost' (using password: YES)
...s as to why 'bill'@'localhost' matches ''@'localhost' like I was, an empty string effectively acts a wild card in MySQL's authentication algorithm.
– Dean Or
Aug 6 '13 at 4:14
2
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C++ multiline string literal
...
Well ... Sort of. The easiest is to just use the fact that adjacent string literals are concatenated by the compiler:
const char *text =
"This text is pretty long, but will be "
"concatenated into just a single string. "
"The disadvantage is that you have to quote "
"each part, and n...
App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 - App Invent...
...说明书，不要弄错以免烧坏硬件）一般来说，需要接线的端口有以下4个，无论哪款蓝牙硬件，也无论哪种其他硬件，这4个端口都是基本的存在：VCC（正极）、GND（接地负极）、TX、RX 交叉接线，参考接线如图：2、串口工具测试...
How to convert a char array to a string?
Converting a C++ string to a char array is pretty straightorward using the c_str function of string and then doing strcpy . However, how to do the opposite?
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How to enable local network users to access my WAMP sites?
... by default.
Now you should edit the \wamp\bin\apache\apache{version}\conf\extra\httpd-vhosts.conf file. In WAMPServer3.0.6 and above there is actually a menu that will open this file in your editor
left click wampmanager -> Apache -> httpd-vhost.conf
just like the one that has always existse...