大约有 37,000 项符合查询结果(耗时:0.0363秒) [XML]

https://www.tsingfun.com/ilife/tech/588.html 

一个自媒体的运营手记:我做公众号已经两年多了 - 资讯 - 清泛网 - 专注C/C...

...复公众号结果一部分直接回复了你,这个不是用户智商的问题,是因为有一少部分人比较随意,可能大致一看就回复你了。 这个都是推广中遇到的用户理解不对称问题。所以我在做图片的时候,在图片上写明了操作步骤,点击...
https://stackoverflow.com/ques... 

What is the best regular expression to check if a string is a valid URL?

...EFFFD}!\$&'\(\)\*\+,;=:@])|[\/\?])*)?)$/i How they were compiled (in PHP): <?php /* Regex convenience functions (character class, non-capturing group) */ function cc($str, $suffix = '', $negate = false) { return '[' . ($negate ? '^' : '') . $str . ']' . $suffix; } function ncg($str, $...
https://stackoverflow.com/ques... 

Static variables in JavaScript

...ction Podcast() { // private variables var _somePrivateVariable = 123; // object properties (read/write) this.title = 'Astronomy Cast'; this.description = 'A fact-based journey through the galaxy.'; this.link = 'http://www.astronomycast.com'; // for read access to _som...
https://stackoverflow.com/ques... 

Can anyone explain what JSONP is, in layman terms? [duplicate]

...p; xhr.status == 200) { // success }; }; xhr.open("GET", "somewhere.php", true); xhr.send(); JSONP Request: var tag = document.createElement("script"); tag.src = 'somewhere_else.php?callback=foo'; document.getElementsByTagName("head")[0].appendChild(tag); The difference between a JSON...
https://stackoverflow.com/ques... 

Facebook Open Graph not clearing cache

...ER['HTTP_HOST'].'/'.$user_photo; <meta property="og:url" content="<?php echo $url; ?>"/> <meta property="og:image" content="<?php echo $user_photo; ?>" Just add this to your page: // with jQuery $.post( 'https://graph.facebook.com', { id: '<?php echo $url;...
https://stackoverflow.com/ques... 

Difference between \w and \b regular expression meta characters

...javascriptkit.com/javatutors/redev2.shtml http://www.virtuosimedia.com/dev/php/37-tested-php-perl-and-javascript-regular-expressions http://www.i-programmer.info/programming/javascript/4862-master-javascript-regular-expressions.html I found this to be a very useful book: Mastering Regular Expres...
https://stackoverflow.com/ques... 

Clearing purchases from iOS in-app purchase sandbox for a test user

...t you don't really have to verify your test user email. you can simply put 123@123.com with specify password(that you are still going to use the password in sandbox mode) and it still work. I just tested last night. – sooon May 1 '14 at 12:24 ...
https://stackoverflow.com/ques... 

https connection using CURL from command line

...e call to allow insecure connections. curl -k https://whatever.com/script.php Edit: I discovered the root of the problem. I was using an SSL certificate (from StartSSL, but I don't think that matters much) and hadn't set up the intermediate certificate properly. If you're having the same problem ...
https://www.tsingfun.com/it/cpp/1586.html 

C++代码执行安装包静默安装 - C/C++ - 清泛网 - 专注C/C++及内核技术

...L, NULL, NULL, szWorking, &si, &pi ); 这种方式貌似还是不能解决问题,具体原因没有深入详查,最终采用了方案3,完美解决。 //在系统进程中查找explorer.exe,并获取其访问令牌 DWORD WINAPI INTER_GetExplorerToken( OUT PHANDLE phExplorerToken ) { ...
https://www.tsingfun.com/it/cp... 

浮点数在内存中的表示 - C/C++ - 清泛网 - 专注IT技能提升

...:大家面试的时候可能会经常遇到考察浮点数与零比较的问题,是简单的 f == 0 吗?当然不是,正确的写法应该是f > -1e-7 && f < 1e-7,为什么呢? 浮点型,由于精度关系(float精度:2^23 = 8388608,一共7位,同理double 16位),最小分...