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【课题讨论】AppInventor2的全局变量是否有大小限制？ - App应用开发 - 清...
...量初步看是没有看到全局变量有大小限制。不过参考高级语言来看，毕竟是栈上分配的变量，是有限制的，不过上限很大，一般人不会弄那么多数据进去。
可以作为一个课题待研究一下。大家也可以一起讨论一下~
【鸿蒙内核】记录一次鸿蒙内核问题跟踪历程 - C/C++ - 清泛IT社区，为创新赋能！
...支了一个Linux内核，然后自己搞中间层，自己搞一套开发语言。
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在纯血鸿蒙上出现了一个网络问题，使用 select 模型，Win/Linux都运行的很好，但是鸿蒙总是失败。
根据日志，标准Linux则是自动重用FID，比如10号关闭再打...
- App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
appinventor是弱语言类型，只有数字（整数、浮点数），没有float类型。
float 的内存表示比较复杂，不建议直接将内存拿来转换。
比较建议的做法，浮点数使用字符串来通信传输（比如传输文本"3.14"），不要用float的原始...
Correctly determine if date string is a valid date in that format
...her solution. And for php version 5.2 support stopped on January 2011, for 5.3 support stopped on August 2014.
– Glavić
Oct 23 '14 at 15:56
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How to resolve “must be an instance of string, string given” prior to PHP 7?
...would pass the object type verification. Unfortunately it's not yet in PHP 5.3, might come in 5.4, so haven't tested this.
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How to extract the n-th elements from a list of tuples?
...gs:
list comprehension: 4.73 ms ± 206 µs per loop
list(map): 5.3 ms ± 167 µs per loop
dict: 2.25 ms ± 103 µs per loop
list(zip) 5.2 ms ± 252 µs per loop
numpy array: 28.7 ms ± 1.88 ms per loop
Note that map() and zip() do not return a list anym...
Can you have a within a ?
...tely clear.
HTML5 specification (including the most current draft of HTML 5.3 dated November 16, 2017) changes terminology, but it's still perfectly valid to place span inside another span.
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ssh “permissions are too open” error
...aven't tested every combination with every version. I have tried 0660 with 5.3p1-84 on CentOS 6, and the group not the primary group of the user but a secondary group, and it works fine.
This would typically not be done for someone's personal key, but for a key used for automation, in a situation w...
Rebase array keys after unsetting elements
...
Late answer but, after PHP 5.3 could be so;
$array = array(1, 2, 3, 4, 5);
$array = array_values(array_filter($array, function($v) {
return !($v == 1 || $v == 2);
}));
print_r($array);
...
PHP: Return all dates between two dates in an array [duplicate]
... ViNce does NOT include the end date for the period.
If you are using PHP 5.3+, your best bet is to use a function like this:
/**
* Generate an array of string dates between 2 dates
*
* @param string $start Start date
* @param string $end End date
* @param string $format Output format (Defaul...