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TCP 的那些事儿（上） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...些事儿（上）TCP是一个巨复杂的协议，因为他要解决很多问题，而这些问题又带出了很多子问题和阴暗面。所以学习TCP本身是个比较痛苦的过程，但对于学习的...
TCP是一个巨复杂的协议，因为他要解决很多问题，而这些问题又...
怎么解决MQTT连接掉线，自动连接问题，同时解决，反复断开连接，断开连接问...
解决MQTT退出后台后掉线自动连接问题，现在可以实现自动连接，但是在返回控制界面的时候，反复断开反复链接，还有切换页面的时候返回也是同样的问题，还有连接一个服务器，需要每个页面单独设置MQTT连接吗，是不是可以...
How to use getJSON, sending data with post method?
...textStatus contains the status: success, error, etc
}, "json");
In that call, dataToBeSent could be anything you want, although if are sending the contents of a an html form, you can use the serialize method to create the data for the POST from your form.
var dataToBeSent = $("form").serialize();...
Find nearest latitude/longitude with an SQL query
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Additionally, it does not take into account the curvature of the earth. This would not be an issue for short search radii. Otherwise Evan's and Igor's answers are more complete.
– John Vance
N...
Download File to server from URL
Well, this one seems quite simple, and it is. All you have to do to download a file to your server is:
10 Answers
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Link to “pin it” on pinterest without generating a button
... or hundreds of posts, each one with social buttons.
I just can't generate all the buttons for each url: it is too slow (facebook, g+, twitter, pinterest... for hundreds of links). So, instead of the facebook share button to be generated on the fly, I use a simple img pointing to
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Mixing a PHP variable with a string literal
...ake a look to the Variable parsing - Complex (curly) syntax section of the PHP manual.
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内网时间同步问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
内网时间同步问题标准的三层网络结构，INT网-----通讯层------应用层-----数据库层现在的问题是数据库层每一个月时间会快上那么一分钟解决方法使用CISCO通讯...标准的三层网络结构，
INT网-----通讯层------应用层-----数据库层 现...
Is it a good practice to use an empty URL for a HTML form's action attribute? (action=“”)
...for compatibility with legacy content. [RFC3986]
This definitely works in all current browsers, but may not work as expected in some older browsers ("browsers do weird things with an empty action="" attribute"), which is why the spec strongly discourages authors from leaving it empty:
The action a...
CFormView 不显示、空白显示的问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
CFormView 不显示、空白显示的问题有时，CFormView会出现不显示、空白显示的问题，尤其是在View中没有可显示的控件的时候（自绘控件除外）。这时在rc对话框资源中添加一个But...有时，CFormView会出现不显示、空白显示的问题，尤...