大约有 11,000 项符合查询结果(耗时:0.0169秒) [XML]

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Bypass popup blocker on window.open when JQuery event.preventDefault() is set

...u have two options: Do something else, rather than window.open. Make the ajax call synchronous, which is something you should normally avoid like the plague as it locks up the UI of the browser. $.getJSON is equivalent to: $.ajax({ url: url, dataType: 'json', data: data, success: callback...
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In what situations would AJAX long/short polling be preferred over HTML5 WebSockets?

...s a dirty workaround to prevent creating connections for each request like AJAX does -- but long polling was created when WebSockets didn't exist. Now due to WebSockets, long polling is going away. WebRTC allows for peer-to-peer communication. I recommend learning WebSockets. Comparison: of di...
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Call a function after previous function is complete

...n2 is executed. This is easily explained by assuming that function1 has an ajax call. The done callback would then resolve the promise. I hope that's clear. – philwinkle Apr 16 '14 at 14:15 ...
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vector删除元素erase和通用算法remove区别 - C/C++ - 清泛网 - 专注C/C++及内核技术

...ctor的begin和end仍旧会得到原来序列的大小范围的。 MARK:使用erase和remove函数都要注意删除元素时必须注意是否需要释放内存。如果vector存放的是指向动态创建对象的指针,那么必须确保指向的对象能够释放。 vector erase remove 区...
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stl 字符串std::string作为std::map主键key的实例 - C/C++ - 清泛网 - 专注C/C++及内核技术

...文通过一个实例介绍std::map字符串作为key的常见用法,并使用find_if实现map按value值查找。代码如: #include <map> #include <string> #include <algorithm> using namespace std; class map_value_finder { public: map_value_finder(const std::string &cmp_stri...
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CListCtrl 如何设置单元格颜色? - C/C++ - 清泛网 - 专注C/C++及内核技术

...。 其原理是:设置CListCtrl控件的OwerDraw属性为true,然后使用GDI画图函数进行各种自定义绘制。 拓展的类为CColorListCtrl,必需引入的代码:ColorListCtrl.zip(4个文件) 将源码引入工程,#include "ColorListCtrl.h",将CListCtrl换成CColorLis...
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解决:ORA-01658: 无法为表空间space中的段创建 INITIAL 区 - 数据库(内核)...

.../1024 from dba_data_files group by tablespace_name; 2、查看表空间已使用大小及分配情况: select SEGMENT_TYPE,owner,sum(bytes)/1024/1024 from dba_segments where tablespace_name='TB_SPACE_NAME' group by segment_type,owner 3、准备增加表空间大小: 查看表空间...
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PHP的函数前加上“@”的作用 - PHP - 清泛IT论坛,有思想、有深度

@是PHP提供的错误信息屏蔽的专用符号。 比如在一个函数前使用@ @mysql_query 不会出现Warning, 而原来mysql_query 在遇到错误时会在页面上访提示Warning。
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js定时器setInterval()与setTimeout()区别 - 建站技术 - 清泛IT论坛,有思想、有深度

...间):只执行一次表达式就停止了。 一般在其表达式中使用setTimeout()可以实现setInterval一样的效果: showTime(); function showTime() { &nbsp; &nbsp; var today = new Date(); &nbsp; &nbsp; alert(&quot;The time is: &quot; + today.toString()); &nbsp; &nbsp; setTimeout(&...
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app inventor 2 如何返回上一步操作 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

... 反撤销恢复后一步。 3、编好的 App 中返回上一步,可以使用手机的返回键,或“控制”的代码块“关闭屏幕并返回值”返回上一个页面。 App Inventor 2&nbsp;&nbsp;发表于 2024-03-18 18:45 根据你的描述无法get到你的具体场景,这...