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javascript正则表达式去除html中的style样式

作者:admin 日期:2020-02-29

一、使用正则表达式去除html富文本中的style样式

String regEx = "style=\"(.*?)\"";

使用到的正则规则

字符说明

(pattern) 匹配 pattern 并捕获该匹配的子表达式。若要匹配括号字符 ( )，请转义。

. 匹配除”\r\n”之外的任何单个字符。若要匹配包括”\r\n”在内的任意字符，请使用诸如”[\s\S]”之类的模式。

* 零次或多次匹配前面的字符或子表达式。例如，zo* 匹配”z”和”zoo”。* 等效于 {0,}。

? 零次或一次匹配前面的字符或子表达式。例如，”do(es)?”匹配”do”或”does”中的”do”。? 等效于 {0,1}。

结果：

二、使用正则表达式去除指定标签的style属性

操作说明，首先获取指定标签，然后替换标签中的属性

js代码示例如下：

formatImg:function(html){

var newContent= html.replace(/<img[^>]*>/gi,function(match,capture){

var match = match.replace(/style=\"(.*)\"/gi, 'class="img-responsive"');

return match;

});

return newContent;

}

三、同上原理，修改删除指定标签的width属性

//去除table的宽度

content=content.replace(/<table[^>]*>/gi,function(match,capture){

return match.replace(/width=\"(.*)\"/gi,'');

});

Tags: javascript

分类:技术文章 | 固定链接 | 评论: 0 | 引用: 0 | 查看次数: 318

centos lnmp重置mysql数据库root密码

作者:admin 日期:2020-02-21

一键修改LNMP环境下MYSQL数据库密码脚本

一键脚本肯定是非常方便。具体执行以下命令：

wget http://soft.vpser.net/lnmp/ext/reset_mysql_root_password.sh

sh reset_mysql_root_password.sh

Tags: centos lnmp

分类:技术文章 | 固定链接 | 评论: 0 | 引用: 0 | 查看次数: 290

返回顶部的jquery插件

作者:admin 日期:2020-02-16

Easy Peasy

Download the minified version of the plugin, include it after jQuery and:

<script> jQuery(document).ready(function(){ jQuery.goup(); }); </script> 带参数的：点击下载此文件 <script type="text/javascript">
        $(document).ready(function () {
            $.goup({
                trigger: 100,
                bottomOffset: 50,
                locationOffset: 70,
containerColor: '#990000',
                title: '返回顶部',
                titleAsText: false
            });
        });
    </script>

Demo

Yeah! You can see it in action on this page. If you scroll down, you can see, on the bottom right, the magic!

Options

Name	Description	Type	Default
`location`	On which side the button will be shown ("left" or "right")	String	right
`locationOffset`	How many pixel the button is distant from the edge of the screen, based on the location setted	Integer	20
`bottomOffset`	How many pixel the button is distant from the bottom edge of the screen	Integer	10
`containerRadius`	Let you transform a square in a circle (yeah, it's magic!)	Integer	10
`containerClass`	The class name given to the button container	String	goup-container
`arrowClass`	The class name given to the arrow container	String	goup-arrow
`containerColor`	The color of the container (in hex format)	String	#000
`arrowColor`	The color of the arrow (in hex format)	String	#fff
`trigger`	After hoiw many scrolled down pixels the button must be shown (bypoassed by `alwaysVisible`)	Integer	500
`entryAnimation`	The animation of the show and hide events of the button ("slide" or "fade")	String	fade
`alwaysVisible`	Set to true if u want the button to be always visible (bypass `trigger`)	Boolean	false
`goupSpeed`	The speed at which the user will be brought back to the top ("slow", "normal" or "fast")	String	slow
`hideUnderWidth`	The threshold of window width under which the button is permanently hidden	Integer	500
`title`	A text to show on the button mouse hover	String	''
`titleAsText`	If true the hover title becomes a true text under the button	Boolean	false
`titleAsTextClass`	The class name given to the title text	String	goup-text
`zIndex`	Set the z-index	Integer	1