<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/baibi4413</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; baibi4413]]></copyright><item><title><![CDATA[js 字符串长度截取]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089781</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089781</guid><author>baibi4413</author><pubDate>Tue, 07 May 2019 14:49:00 +0800</pubDate><description><![CDATA[1 &lt;script&gt;
 2   function cutstr(str, len) {
 3     var temp,
 4         icount = 0,
 5         patrn = /[^\x00-\xff]/,
 6         strre = "";
 7     for (var i = 0; i &lt; str.leng...]]></description><category></category></item><item><title><![CDATA[判断是手机端还是pc端]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089748</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089748</guid><author>baibi4413</author><pubDate>Tue, 07 May 2019 14:47:00 +0800</pubDate><description><![CDATA[1 &lt;script type="text/javascript"&gt;
 2   if (window.location.toString().indexOf('pref=padindex') != -1) {
 3 
 4   } else {
 5     if (/AppleWebKit.*Mobile/i.test(navigator.userAgent) ...]]></description><category></category></item><item><title><![CDATA[js回到顶部]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089772</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089772</guid><author>baibi4413</author><pubDate>Tue, 07 May 2019 14:43:00 +0800</pubDate><description><![CDATA[1 &lt;!DOCTYPE html&gt;
 2 &lt;html lang="en"&gt;
 3 &lt;head&gt;
 4 &lt;meta charset="UTF-8"&gt;
 5 &lt;meta name="viewport" content="width=device-width, initial-scale=1.0"&gt;
 6 &lt;me...]]></description><category></category></item><item><title><![CDATA[javascript学习7]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089770</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089770</guid><author>baibi4413</author><pubDate>Mon, 31 Jul 2017 16:27:00 +0800</pubDate><description><![CDATA[数组去重

&lt;script type="text/javascript"&gt;
     window.onload=function(){
            var arr=[1,1,2,3,4,3,4,5,5];
            for(var i=0;i&lt;arr.length;i++){
                for(var j=i...]]></description><category></category></item><item><title><![CDATA[javascript学习6]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089779</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089779</guid><author>baibi4413</author><pubDate>Thu, 13 Jul 2017 12:00:00 +0800</pubDate><description><![CDATA[定时器

setInterval(函数,毫秒)  ------&gt; 重复执行

 setTimeout(函数,毫秒);  ------&gt; 执行一次



&lt;script type="text/javascript"&gt;
     window.onload=function(){
            var timer=null;...]]></description><category></category></item><item><title><![CDATA[javascript学习5]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089776</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089776</guid><author>baibi4413</author><pubDate>Mon, 10 Jul 2017 20:52:00 +0800</pubDate><description><![CDATA[%运算符的使用



 1 &lt;!DOCTYPE html&gt;
 2 &lt;html&gt;
 3     &lt;head&gt;
 4         &lt;meta charset="UTF-8"&gt;
 5         &lt;title&gt;&lt;/title&gt;
 6         &lt;script type="text/...]]></description><category></category></item><item><title><![CDATA[javascript学习4]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089768</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089768</guid><author>baibi4413</author><pubDate>Sat, 08 Jul 2017 09:50:00 +0800</pubDate><description><![CDATA[函数传参

重用代码




&lt;!DOCTYPE html&gt;
&lt;html&gt;
    &lt;head&gt;
        &lt;meta charset="UTF-8"&gt;
        &lt;title&gt;&lt;/title&gt;
        &lt;script type="text/javascrip...]]></description><category></category></item><item><title><![CDATA[javascript学习3]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089775</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089775</guid><author>baibi4413</author><pubDate>Wed, 05 Jul 2017 16:23:00 +0800</pubDate><description><![CDATA[javascript数据类型、函数传参

javascript语言核心:ECMAScript


定义js的语法：基本对象、数据类型


js的数据类型

typeof运算符 判断数据类型

字符串、数字、布尔、函数、对象（obj、[]、{}、null）、未定义(undefined)、数组、null...
数据类型使用原则：一个变量只存放一种类型数据　　
...]]></description><category></category></item><item><title><![CDATA[javascript学习2]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089774</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089774</guid><author>baibi4413</author><pubDate>Sun, 02 Jul 2017 23:21:00 +0800</pubDate><description><![CDATA[希望把某个元素移除你的视线：

display:none; 显示为无
visibility:hidden; 隐藏
width 或者 height
透明度
left或者top
拿一个白色DIV盖住它
margin负值
......


事件：鼠标事件、键盘事件、系统事件、表单事件、自定义事件……

onclick
onmouseover
onmous...]]></description><category></category></item><item><title><![CDATA[兼容性]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089771</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089771</guid><author>baibi4413</author><pubDate>Fri, 30 Jun 2017 17:32:00 +0800</pubDate><description><![CDATA[css常见问题

H5标签兼容（IE6下的问题）。


&lt;!DOCTYPE html&gt;
&lt;html&gt;
    &lt;head&gt;
        &lt;meta charset="UTF-8"&gt;
        &lt;title&gt;&lt;/title&gt;
        &lt;script type="text/...]]></description><category></category></item><item><title><![CDATA[定位]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089769</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089769</guid><author>baibi4413</author><pubDate>Fri, 30 Jun 2017 10:38:00 +0800</pubDate><description><![CDATA[relative相对定位/定位偏移量

position:relative;相对定位

不影响元素本身的特征
不使元素脱离文档流(元素移动之后原始位置会被保留)
如果没有定位偏移量，对元素本身没有任何影响
提升层级


定位元素位置控制

top | right | bottom | left 定位元素偏移量




absolute绝对定位/定位层...]]></description><category></category></item><item><title><![CDATA[float/文档流]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089767</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089767</guid><author>baibi4413</author><pubDate>Thu, 29 Jun 2017 23:12:00 +0800</pubDate><description><![CDATA[float : left | right | none | inherit;
文档流是文档中可显示对象在排列时所占用的位置。
浮动的定义: 使元素脱离文档流，按照指定方向发生移动，遇到父级边界或者相邻的浮动元素停了下来。
clear : left | right | both | none | inherit; 元素的某个方向上不能有浮动元素。clear:both;在左右两侧均...]]></description><category></category></item><item><title><![CDATA[line-height]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089766</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089766</guid><author>baibi4413</author><pubDate>Thu, 29 Jun 2017 10:33:00 +0800</pubDate><description><![CDATA[line-height 
　　行高 文字在一行里面所占用的位置，当行高的值与容器高度一致时，文字会垂直居中显示。
　　多行文字测量 行高的方法：
　　　　1）确认文字大小。
　　　　2）确认两行文字之间的空隙大小。
　　　　3）空隙大小除以2，得出来的值就是每行文字的上下的空隙大小。
　　　　　　3.1）当行高为基数时，那么文字的上方要比下方少一个像素。
　　　　　　3....]]></description><category></category></item><item><title><![CDATA[javascript学习1]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089764</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089764</guid><author>baibi4413</author><pubDate>Mon, 26 Jun 2017 12:02:00 +0800</pubDate><description><![CDATA[&lt;script type="text/javascript"&gt;
    var a,b,c,d;
    a=(b=5,c=2,d=3);//逗号运算符：它只会返回最后边的表达式的值
    console.log(a);//3   
             
    var a,b,c,d;
    a=void(b=3,c=2,d=3);//void强调...]]></description><category></category></item><item><title><![CDATA[正则表达式]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089765</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089765</guid><author>baibi4413</author><pubDate>Sun, 25 Jun 2017 22:17:00 +0800</pubDate><description><![CDATA[*什么是正则表达式
    正则表达式是对字符串操作的一种逻辑公式，就是用实现定义好的一些特定字符、及这些特定字符的组合，组成一个“规则字符串”，这个“规则字符串”用来表达对字符串的一种过滤逻辑。
*使用正则表达式的目的
　　给定的字符串是否符合正则表达式的过滤逻辑(称作"匹配");
   可以通过正则表达式，从字符串中获取我们想要的特定部分。
*正则表达式的特...]]></description><category></category></item><item><title><![CDATA[刷新当前页面]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089762</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089762</guid><author>baibi4413</author><pubDate>Fri, 23 Jun 2017 16:29:00 +0800</pubDate><description><![CDATA[&lt;script&gt;
        window.onload=function(){
            document.getElementById("updatePage").onclick=function(){
                /*windo为当前的窗口对象*/
                /*方法1：直接调用reload*/
...]]></description><category></category></item><item><title><![CDATA[回车提交表单]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089763</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089763</guid><author>baibi4413</author><pubDate>Fri, 23 Jun 2017 16:24:00 +0800</pubDate><description><![CDATA[&lt;script&gt;
        window.onload=function(){
            document.getElementById("enterSubmit").onkeyup=function(e){
                e=e||window.event;  //获取事件对象
                var ...]]></description><category></category></item><item><title><![CDATA[原生dialog]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089760</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089760</guid><author>baibi4413</author><pubDate>Fri, 23 Jun 2017 16:18:00 +0800</pubDate><description><![CDATA[&lt;!doctype html&gt;
    &lt;html lang="en"&gt;
    &lt;head&gt;
        &lt;meta charset="UTF-8"&gt;
        &lt;meta name="Generator" content="EditPlus?"&gt;
        &lt;meta name="Auth...]]></description><category></category></item><item><title><![CDATA[chrome表单自动填充去掉input黄色背景解决方案]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089761</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089761</guid><author>baibi4413</author><pubDate>Fri, 23 Jun 2017 10:02:00 +0800</pubDate><description><![CDATA[chrome表单自动填充后，input文本框的背景会变成偏黄色的，这是由于chrome会默认给自动填充的input表单加上input:-webkit-autofill私有属性，然后对其赋予以下样式:　

input:-webkit-autofill { 
　　　　background-color: #FAFFBD;
　　　　background-image: none;
　　　...]]></description><category></category></item><item><title><![CDATA[img 标签下多余空白的解决方法]]></title><link>https://blog.youkuaiyun.com/baibi4413/article/details/101089758</link><guid>https://blog.youkuaiyun.com/baibi4413/article/details/101089758</guid><author>baibi4413</author><pubDate>Fri, 23 Jun 2017 09:59:00 +0800</pubDate><description><![CDATA[在浏览器中，图片默认的vertical-align是baseline。那么，我们该如何去掉这多余的空白呢？
1）将图片转换为块级
　　img{display:block;}
2) 设置图片的垂直对齐方式
　　img{ vertical-align:top}
3) 设置父级的文字大小为0px
　　font-size:0;
4) 设置父级的属性
　　overflow:hidd...]]></description><category></category></item></channel></rss>