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apk安装报错：packageInfo is null？ - 用户反馈 - 清泛IT社区，为创新赋能！
编译设置问题，包名中没有英文点.，已修复，加了包名验证提示。
mqtt协议一般最大支持订阅几个主题？ - 创客硬件开发 - 清泛IT社区，为创新赋能！
...般几十到几百。以下来自AI的回答。
这是一个非常好的问题，但它没有一个简单的固定数字作为答案。MQTT协议规范本身并没有硬性规定一个客户端可以订阅主题的最大数量。这个限制主要取决于以下三个方面：MQTT代理（Broker...
How to auto-remove trailing whitespace in Eclipse?
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This option appears in PDT for PHP as well, under Save Actions.
– thaddeusmt
Feb 28 '11 at 5:50
1
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Can someone explain the dollar sign in Javascript?
... someone just put a dollar sign at the start for fun - perhaps they were a PHP programmer who did it out of habit, or something. In PHP, all variable names must have a dollar sign in front of them.
There is another common meaning for a dollar sign in an interpreter nowadays: the jQuery object, who...
How to change collation of database, table, column?
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You can run a php script.
<?php
$con = mysql_connect('localhost','user','password');
if(!$con) { echo "Cannot connect to the database ";die();}
mysql_select_db('db...
counting number of directories in a specific directory
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Nice! How would you do this $ ls -l .vim with PHP? Or how to get only the total, without the list. I mean, in this case get only 52?
– Pathros
Mar 8 '17 at 18:32
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Static/Dynamic vs Strong/Weak
...e it does not want to cast one type to the other implicitly.
whereas in PHP:
$str = 5 + "hello"; // equals 5 because "hello" is implicitly casted to 0
// PHP is weakly typed, thus is a very forgiving language.
Static typing allows for checking type correctness at compile time. Statically type...
使用TokuMX配置Replica Set集群 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
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use admin
db.shutdownServer()
有任何关于MongoDB/TokuMX方面的问题，欢迎回复评论。集群 TokuMX MongoDB
Why am I seeing an “origin is not allowed by Access-Control-Allow-Origin” error here? [duplicate]
...ot the case you cannot use jsonp and you MUST rely on a server side proxy (PHP, ASP, etc.). There are plenty of guides related to this topic, just google it!
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上班狗来算算 你离财务自由还差多少钱？ - 杂谈 - 清泛网 - 专注C/C++及内核技术
...鸡冻呢~
2。财务自由需要多少软妹币？
这是一个复杂的问题。胡润曾对财务自由的实现给出了一个数字——1亿元。他认为1亿元之后再多的钱就没有必要，说白了就是花不完了，“要想活得舒服，有一套别墅外加在市中心有一...