大约有 44,000 项符合查询结果(耗时:0.0380秒) [XML]

https://www.tsingfun.com/it/bigdata_ai/1107.html 

MongoDB sort排序、index索引教程 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...排序也没有效果。 实例 col 集合中的数据如下: { "_id" : ObjectId("56066542ade2f21f36b0313a"), "title" : "PHP 教程", "description" : "PHP 是一种创建动态交互性站点的强有力的服务器端脚本语言。", "by" : "菜鸟教程", "url" : "https://www.tsingfun.com"...
https://www.tsingfun.com/it/te... 

phpcms标签向导有什么用? - 更多技术 - 清泛网 - 专注C/C++及内核技术

phpcms标签向导有什么用?phpcms_tag_guide_instructionsphpcms标签向导有什么用?不用手写V9标签调用语法,也能根据向导配置出所需数据的代码。一、简介 使用标签向导,让你在不太了解系统标签的情况下,也能按配置向导调取自己想...
https://www.tsingfun.com/it/te... 

onsubmit阻止表单提交 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...mit="return checksubmit()"> <label> <input name="myname" type="text" id="id"> </label> <p> <label> <input type="submit" name="Submit" value="提交"> </label> </p> </form> 代码很简单,注意以下几点: 1、在js中,是获得input的name,而不是id,往...
https://www.tsingfun.com/it/tech/1703.html 

phpcms v9与ucenter通信失败 完美解决 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...页面地址:(选填,URL中域名后面的部分,如:/space.php?uid=%s 这里的 %s 代表uid) 应用接口文件名称:(选填,默认为uc.php) 标签单条显示模板:(选填,默认留空) 标签模板标记说明:(选填,默认留空) 是...
https://www.tsingfun.com/it/tech/2231.html 

Linux chmod命令用法 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...rmission r 读 w 写 x 执行 s 设置用户(或组)的ID号 t 设置粘着位(sticky bit),防止文件或目录被非属主删除 u 用户的当前权限 g 组的当前权限 o 其他用户的当前权限 作为选择,我们多数用三位八进制数...
https://www.tsingfun.com/it/cpp/2648.html 

C++实现句柄多版本过期置old的思路 - C/C++ - 清泛网 - 专注C/C++及内核技术

...解决。轻量级的不使用MVCC的话,思路如下:核心ObjPtrmap<id, ObjPtr> map_;Get的时候返回最新的ObjPtr;当ObjPtr有新版本要更新的时候,将map中对应id的ObjPtr中is 使用MVCC可以解决。 轻量级的不使用MVCC的话,思路如下: 核心ObjPtr m...
https://bbs.tsingfun.com/thread-1717-1-1.html 

自定义下载器扩展:个性化下载进度展示 - App Inventor 2 拓展 - 清泛IT社...

...gered when an error occurs during download. Successful Download downloadId, filePath, fileSize, fileName Event triggered to report download progress, speed, eta, fileSize, and downloadedSize Download the file of given URL to the given path with CustomFilePath.isEmpty : filePath = /storage/...
https://stackoverflow.com/ques... 

How to validate inputs dynamically created using ng-repeat, ng-show (angular)

I have a table that is created using ng-repeat. I want to add validation to each element in the table. The problem is that each input cell has the same name as the cell above and below it. I attempted to use the {{$index}} value to name the inputs, but despite the string literals in HTML appearing...
https://stackoverflow.com/ques... 

Center Google Maps (V3) on browser resize (responsive)

I have a Google Maps (V3) in my page at 100% page width with one marker in the middle. When I resize my browser window's width I would like the map to stay centered (responsive). Now the map just stays at the left side of the page and gets smaller. ...
https://stackoverflow.com/ques... 

Labels for radio buttons in rails form

... There is another way, too: passing a :value option to f.label will do the same thing. e.g. &lt;%= f.label :contactmethod, 'SMS', :value =&gt; 'sms' %&gt;. This sets the "for" attribute of the label tag correctly, which makes clicking the label select the a...