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<meta name="microscope-data" cOntent="pageId=1551819703;userid=123456789;">
代码
var id1 = document.getElementsByName("microscope-data")[0].content;
var myRe = /userid=(\d+)/;
var reg = myRe.exec(id1);
alert(reg[1]);
没有学过 JS 请问有没有什么更好的办法获取 userid 的值
 | 1 zhlssg May 31, 2018  1 如果可以保证 content 里面是键值对形式可以，用字符串在外部拼接大括号，JSON.parse 一下，再取 |
 | 2 wangyongbo May 31, 2018 <meta name="userid" cOntent="123456789"> |
 | 3 F1024 OP @wangyongbo 格式固定不能改 |
 | 4 wr410 May 31, 2018 1 split(";") foreach{ split("=") } |
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