大约有 4,000 项符合查询结果（耗时：0.0250秒） [XML]
Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
...l API中获取实时行情并刷新数据，Google Financal API，提供了世界各大交易所的实时行情数据，其支持的市场及时效性在其官网上有说明，其使用方法可以参考这篇文章，这里不细谈。其主要思路如下，首先定义好请求的参数，我们...
可重入函数、不可重入函数及线程安全 - C/C++ - 清泛网 - 专注C/C++及内核技术
...保存和恢复进程的上下文，然而恢复的上下文仅限于返回地址，cpu寄存器等之类的少量上下文，而函数内部使用的诸如全局或静态变量，buffer等并不在保护之列，所以如果这些值在函数被中断期间发生了改变，那么当函数回到断...
C++ convert hex string to signed integer
... Buchanan, as far as sticking to C++ goes, I liked yours, but I have a few mods:
template <typename ElemT>
struct HexTo {
ElemT value;
operator ElemT() const {return value;}
friend std::istream& operator>>(std::istream& in, HexTo& out) {
in >> std::...
Why does HTML think “chucknorris” is a color?
...are not skipped, they are treated as 0.
– treat your mods well
Sep 28 '12 at 3:30
5
(WHile this a...
How do I get user IP address in django?
... ip
Make sure you have reverse proxy (if any) configured correctly (e.g. mod_rpaf installed for Apache).
Note: the above uses the first item in X-Forwarded-For, but you might want to use the last item (e.g., in the case of Heroku: Get client's real IP address on Heroku)
And then just pass the re...
PHP - how to best determine if the current invocation is from CLI or web server?
...rom the command line (CLI) or from the web server (in my case, Apache with mod_php).
18 Answers
...
Should I choose ActivePerl or Strawberry Perl for Windows? [duplicate]
...tive PPM repositories which will give you access to almost all useful Perl modules available on CPAN - but prepared and tested for Windows. This was for me, in the long run, a much better (and more robust) choice. Even for the Windows version of the Apache HTTP server, there is a precompiled mod_per...
What is the difference between HTTP_HOST and SERVER_NAME in PHP?
...ts the both values, created a Java test application using URLConnection to modify the Host header and tests taught me that this is indeed (incorrectly) the case.
After first suspecting PHP and digging in some PHP bug reports regarding the subject, I learned that the root of the problem is in web se...
How do I get the path of the current executed file in Python?
...red only in memory.
However, you can reliably determine the location of a module, since modules are always loaded from a file. If you create a module with the following code and put it in the same directory as your main script, then the main script can import the module and use that to locate itse...
Oracle Differences between NVL and Coalesce
...
COALESCE is more modern function that is a part of ANSI-92 standard.
NVL is Oracle specific, it was introduced in 80's before there were any standards.
In case of two values, they are synonyms.
However, they are implemented differently.
N...