<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[ldldong的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/ldldong</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; ldldong]]></copyright><item><title><![CDATA[《JavaScript高级程序设计-第2版》读书笔记]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/45482023</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/45482023</guid><author>ldldong</author><pubDate>Mon, 04 May 2015 15:50:59 +0800</pubDate><description><![CDATA[1:继承的实现方法：

1.原型链：SubType.prototype=new SuperType();这种方法的问题就是，如果超类有引用型属性，那这个属性会被所有的SubType实例共享，一个实例修改这个属性，其他实例也会有同样的效果。]]></description><category></category></item><item><title><![CDATA[前端笔试题笔记：在HTML中实现table表头点击升序/降序排序]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/44900883</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/44900883</guid><author>ldldong</author><pubDate>Mon, 06 Apr 2015 12:04:47 +0800</pubDate><description><![CDATA[题目：如下图，请实现表格信息的排序功能，当点击表头的属性区域，将表格信息进行排序切换功能，即第一次点击为降序排序，再一次点击进行升序排序。]]></description><category></category></item><item><title><![CDATA[前端笔试题笔记：拍扁多维数组、提取URL中的参数变成对象、string的trim()函数、判断Email地址、16进制颜色转rgb]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/44786523</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/44786523</guid><author>ldldong</author><pubDate>Tue, 31 Mar 2015 21:50:48 +0800</pubDate><description><![CDATA[拍扁多维数组、提取URL中的参数变成对象、实现string的trim()函数、判断Email地址、16进制颜色转rgb格式]]></description><category></category></item><item><title><![CDATA[前端笔试题练习笔记：函数参数按照从小到大的顺序排序、数字格式化]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/44756077</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/44756077</guid><author>ldldong</author><pubDate>Mon, 30 Mar 2015 19:57:35 +0800</pubDate><description><![CDATA[写一个mySort（）函数，使得其参数按从小到大的顺序排列，参数个数未知]]></description><category></category></item><item><title><![CDATA[前端笔试题目练习笔记：统计数组中不同的数字出现的概率并排序]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/44260837</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/44260837</guid><author>ldldong</author><pubDate>Sat, 14 Mar 2015 16:42:11 +0800</pubDate><description><![CDATA[题目要求：有一个int型数组，里面有若干数字。要求统计出一共有多少种不同的数字？每种数字出现的频率？将数组按出现频率从少到多排列，频率相同则从小到大排列。 
解决方法：用一个数组来存储不同的数字及出现概率，逐一拿出数组中的数字和数组中的其他数字进行比较，相同则把相同的那个设为null，同时将该数字对应的出现次数加1，最后使用冒泡排序 
js实现代码：var NumberData=[1,4,5,7,8]]></description><category></category></item><item><title><![CDATA[前端笔试题笔记（回到顶部组件）]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/44260621</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/44260621</guid><author>ldldong</author><pubDate>Sat, 14 Mar 2015 16:25:31 +0800</pubDate><description><![CDATA[前端笔试题笔记（回到顶部组件）题目要求：当页面向下滚动距顶部一定距离（如100px）时出现，向上回滚距顶部低于同样距离时隐藏，点击返回顶部组件时页面滚动到顶部；这题一共4个问题要解决：向下滚动距顶部一定距离（如100px）时出现、上回滚距顶部低于同样距离时隐藏、点击返回顶部组件时页面滚动到顶部、始终定位在某个位置（一般来说是右下角） 
第一个和第二个问题用在window.onscrollTop中，判]]></description><category></category></item><item><title><![CDATA[jsonp和CORS跨域实现]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/43404677</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/43404677</guid><author>ldldong</author><pubDate>Mon, 02 Feb 2015 09:28:30 +0800</pubDate><description><![CDATA[写js时总是会遇到跨域请求的问题，现在了解了两种方法，记录之：
1）使用$.ajax，但是返回数据类型要设置为jsonp，示例：
     $.ajax({
        type: 'get',
        contentType: "application/json; charset=utf-8",      
        url: "http://localhost:8080/]]></description><category></category></item><item><title><![CDATA[利用jsoup爬取百度网盘资源分享连接（多线程）（2）]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/42061667</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/42061667</guid><author>ldldong</author><pubDate>Sun, 21 Dec 2014 17:17:31 +0800</pubDate><description><![CDATA[利用抓取的百度网盘资源分享链接，用wamp搭建一个百度网盘资源搜索网站。实现资源共享]]></description><category></category></item><item><title><![CDATA[兼容IE10 chrome的读取xml方法总结]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/41912617</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/41912617</guid><author>ldldong</author><pubDate>Sat, 13 Dec 2014 19:35:17 +0800</pubDate><description><![CDATA[JavaScript读取xml，兼容浏览器]]></description><category></category></item><item><title><![CDATA[利用jsoup爬取百度网盘资源分享连接（多线程）]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/40535811</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/40535811</guid><author>ldldong</author><pubDate>Tue, 28 Oct 2014 09:47:41 +0800</pubDate><description><![CDATA[用jsoup抓取百度网盘资源链接，并用java实现多线程抓取，提高效率,同时用关键字和正则表达式过滤垃圾链接。]]></description><category></category></item><item><title><![CDATA[JavaScript 学习笔记]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/39803759</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/39803759</guid><author>ldldong</author><pubDate>Sun, 05 Oct 2014 16:13:04 +0800</pubDate><description><![CDATA[1、进行比较时，尽量使用“===”，而不是使用“==”，因为“==”操作符会为了比较两个值而进行强制类型转换，会带来性能消耗。
2、为了达到遍历数组的最佳性能，推荐使用经典的 for 循环。
 var list = [1, 2, 3, 4, 5, ...... 100000000];
for(var i = 0, l = list.length; i 
    console.log(li]]></description><category></category></item><item><title><![CDATA[《代码大全》读书笔记]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/39104575</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/39104575</guid><author>ldldong</author><pubDate>Sat, 06 Sep 2014 21:44:34 +0800</pubDate><description><![CDATA[《代码大全》读书笔记]]></description><category></category></item><item><title><![CDATA[ArcGIS API for Javascript 开发：不适用esri.toolbar.draw接口，由用户控制定位中心点和半径，实现查询落在圆内的要素]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/39081177</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/39081177</guid><author>ldldong</author><pubDate>Fri, 05 Sep 2014 15:10:08 +0800</pubDate><description><![CDATA[不适用esri.toolbar.draw接口，由用户控制定位中心点和半径，实现查询落在圆内的要素]]></description><category></category></item><item><title><![CDATA[ArcGIS API for Javascript 使用query查询以某个点为半径的圆内的要素出现“esri.config.defaults.io.proxyUrl 尚未进行设置”错误]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/39080991</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/39080991</guid><author>ldldong</author><pubDate>Fri, 05 Sep 2014 14:57:12 +0800</pubDate><description><![CDATA[ArcGIS API for Javascript 使用query查询以某个点为半径的圆内的要素出现“esri.config.defaults.io.proxyUrl 尚未进行设置”错误解决办法]]></description><category></category></item><item><title><![CDATA[PHP实现注册登录，并实现注册时动态检查用户名是否可用]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/36932241</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/36932241</guid><author>ldldong</author><pubDate>Fri, 04 Jul 2014 22:31:44 +0800</pubDate><description><![CDATA[用PHP实现注册登录，原理就是注册时往数据库中插入用户信息]]></description><category></category></item><item><title><![CDATA[PHP自带函数fgetcsv读取csv文件中文乱码问题解决办法]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/36931785</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/36931785</guid><author>ldldong</author><pubDate>Fri, 04 Jul 2014 22:20:25 +0800</pubDate><description><![CDATA[csv格式不是utf的，所以在读取和写入mysql的时候就会出现乱码，用iconv函数转换下即可。
$fh=fopen("upload/loaddatatest.csv","r");
while ($line=fgetcsv($fh,1000,",")){
    $Name=$line[0];
$Name=iconv('gb2312','utf-8',$line[0]);  

ec]]></description><category></category></item><item><title><![CDATA[IIS上配置PHP环境]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/28456179</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/28456179</guid><author>ldldong</author><pubDate>Wed, 04 Jun 2014 21:29:08 +0800</pubDate><description><![CDATA[首先声明，已经有IIS网站，目前想再网站上运行phpjia]]></description><category></category></item><item><title><![CDATA[Highchart+EasyUI动态控制图表位置]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/26060665</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/26060665</guid><author>ldldong</author><pubDate>Sat, 17 May 2014 12:17:19 +0800</pubDate><description><![CDATA[Highchart图表绚丽，EasyUI制作各种框架、按钮fei]]></description><category></category></item><item><title><![CDATA[ArcGIS API For Javascript中queryTask查询返回结果限制为1000的解决办法]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/25967805</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/25967805</guid><author>ldldong</author><pubDate>Fri, 16 May 2014 12:24:25 +0800</pubDate><description><![CDATA[更改ArcGIS Server目录下的某个文件即可]]></description><category></category></item><item><title><![CDATA[基于Highchart制作仪表图和柱状图]]></title><link>https://blog.youkuaiyun.com/ldldong/article/details/25912357</link><guid>https://blog.youkuaiyun.com/ldldong/article/details/25912357</guid><author>ldldong</author><pubDate>Thu, 15 May 2014 20:03:55 +0800</pubDate><description><![CDATA[var columnchartoptions = {
    chart:{
        renderTo: 'detail',
        type: 'column',
        width: 370,
        height:200,
    },
    title: {
        text: '',
        style: {
    ]]></description><category></category></item></channel></rss>