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App Inventor 2开发简单计算器 - App Inventor 2 中文网 - 清泛IT论坛，有思想、有深度
...序执行过程、跟踪变量值的方法，可以帮我们找到原因。问题出在输入等号之后，此时： 前数=计算结果 后数=0 算符=“”接下来输入算符，由于算符=“”，因此执行点击算符过程的“如果...则”分支，第一行代码为【前数=后数...
php check if array contains all array values from another array
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present in all the arguments. Note that keys are preserved.
http://www.php.net/manual/en/function.array-intersect.php
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Why do you not use C for your web apps?
...ich comes "for free" with a more, shall we say "web-centric" language like PHP or C# or Ruby or whatever. That means you pay more.
Add all of that to the fact that single-threaded computational speed just isn't that important on the web. If you need more scalability, most organizations can econom...
驯服Linux OOM Killer（优质英文资料翻译） - 操作系统(内核) - 清泛网移动...
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艾伦·考克斯不喜欢这个解决方案，这表明该容器是控制问题的最适当方式。为了响应这个建议，由 Nikanth Karthikesan 贡献的oom_killer 控制器提供了在系统内存不足时要杀死的进程序列的控制。该补丁引入了一个带有oom.priority字段...
How to use Python to login to a webpage and retrieve cookies for later usage?
...gin moment involves sending two POST params (username, password) to /login.php. During the login request I want to retrieve the cookies from the response header and store them so I can use them in the request to download the webpage /data.php.
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【解决】phpMyAdmin 导入数据文件最大限制 - 更多技术 - 清泛网 - 专注C/C++及内核技术
【解决】phpMyAdmin 导入数据文件最大限制phpmyadmin_post_max_size etc php 7 0 apache2 php ini 默认配置2M，即通过http post上传的文件最大2M，修改配置搞定： PHP上传文件大小限制upload_max_filesize = 200M http post发送文件大小限 /etc/php/7.0/apache2/p...
What does $1 [QSA,L] mean in my .htaccess file?
...)$ (matches any URL except the server root), it will be rewritten as index.php?url=$1 which means a request for ollewill be rewritten as index.php?url=olle).
QSA means that if there's a query string passed with the original URL, it will be appended to the rewrite (olle?p=1 will be rewritten as inde...
How to use relative/absolute paths in css URLs?
...g the search/replace and I created a dynamic css, (e.g. www.mysite.com/css.php) it's the same but now i could use my php constants in the css. somethig like
.icon{
background-image:url('<?php echo BASE_IMAGE;?>icon.png');
}
and it's not a bad idea to make it dynamic because now i could co...
How do I install a custom font on an HTML site
I am not using flash or php - and I have been asked to add a custom font to a simple HTML layout. "KG June Bug"
6 Answers
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How do I catch an Ajax query post error?
...Since jQuery 1.5 you can use the deferred objects mechanism:
$.post('some.php', {name: 'John'})
.done(function(msg){ })
.fail(function(xhr, status, error) {
// error handling
});
Another way is using .ajax:
$.ajax({
type: "POST",
url: "some.php",
data: "name=John&l...