通过正则获得url中的参数

Q1:通过正则获得url中的参数简单实例

url界面

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
    </head>
    <body>
        <a href="script05.html?name=zhang&age=12&sex=男">点击事件</a>
    </body>
</html>

js中

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
    </head>
    <body>
        <script>
            //console.log(location.href);
            //console.log(location.search.substr(1));
            //name=zhang&age=12&sex=男
            /*通过正则获取url中的参数*/
            function getUrlParam(name){ 
                var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)");
                var r = window.location.search.substr(1).match(reg);
                if(r!=null)
                       return decodeURI(r[2]); 
                return null;
            }
            var name = getUrlParam("sex");
            console.log(name);
        </script>
    </body>
</html>

结果

zywds