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Refresh a page using JavaScript or HTML [duplicate]
...g (ajax) at loading. for example: www.yoursite.com/page/about?getVer=1&__[date]
Compare it to the stored versionnumber (stored in cookie or localStorage) if user has visited the page once, otherwise store it directly.
If version is not the same as local version, refresh the page using window.loc...
std::mutex 加锁抛 _DEVICE_OR_RESOURCE_BUSY 异常 - C/C++ - 清泛网 - 专注C/C++及内核技术
std::mutex 加锁抛 _DEVICE_OR_RESOURCE_BUSY 异常device_or_resource_busy最近遇到一个崩溃，在 std::lock_guard<std::mutex> lock(mutex_); 的地方，抛出了_DEVICE_OR_RESOURCE_BUSY 的异常。最终查出原因是：同一个线程对同一个mutex二次加锁导致的 最近遇到...
未能从“const std::string”为“const std::_Tree<_Traits> &”...
http://blog.csdn.net/mfcing/article/details/44157227
error LNK2019: 无法解析的外部符号 _GetFileVersionInfoSizeW@8，该符号在...
GetFileVersionInfoSize build时出现link2019 链接错误：
#pragma comment(lib, "version")
解决。
Intel SMID指令集编译错误: inlining failed in call to always_inline \'x...
Intel SMID指令集编译错误: inlining failed in call to always_inline 'xxx': target specific option mismatch xxxintel_smid_compile_error最近在使用CPU指令集优化代码的时候，编译出错，报错如下： usr lib64 gcc x86_64-suse-linux 7 include avx2intrin h:252:1: error: inlining ...
Django - how to create a file and save it to a model's FileField?
...nteract with the underlying file. So, what you need to do is:
self.license_file.save(new_name, new_contents)
where new_name is the filename you wish assigned and new_contents is the content of the file. Note that new_contents must be an instance of either django.core.files.File or django.core.fil...
Divide a number by 3 without using *, /, +, -, % operators
...(int argc, char *argv[])
{
int num = 1234567;
int den = 3;
div_t r = div(num,den); // div() is a standard C function.
printf("%d\n", r.quot);
return 0;
}
share
|
improve this ...
How to pull a random record using Django's ORM?
...
Using order_by('?') will kill the db server on the second day in production. A better way is something like what is described in Getting a random row from a relational database.
from django.db.models.aggregates import Count
from random...
What is the meaning of “POSIX”?
...iew/osfoundations.html . For Windows, see en.wikipedia.org/wiki/POSIX#POSIX_for_Windows : Posix compliance is currently included in Enterprise and Ultimate editions only (not in the cheaper ones!-), though you can get partways w/Cygwin, en.wikipedia.org/wiki/Cygwin .
– Alex Mar...
“for loop” with two variables? [duplicate]
...ou don't want to truncate to the shortest list, you could use itertools.zip_longest.
UPDATE
Based on the request for "a function that will read lists "t1" and "t2" and return all elements that are identical", I don't think the OP wants zip or product. I think they want a set:
def equal_elements(...