javascript 正则

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查找文中  data-xxx="xxxxxxxx"    表达式:   var reg = /data-(.*?)="(.*?)"/g;

二、匹配汉字，去除汉字中间的 er   汉字匹配 : [\u4e00-\u9fa5]

<p>看历史我埃里克覅结果er念佛去我按快门卖给耐饿er无奈你斯恶坑爹坑爹快递er好几个合肥卡西欧欸我</p>

表达式：([\u4e00-\u9fa5])er([\u4e00-\u9fa5]) 替换为 $1$2

把 er 替换成  好   表达式：([\u4e00-\u9fa5])er([\u4e00-\u9fa5]) 替换为 $1好$2

看历史我埃里克覅结果er念佛去我按快门卖给耐饿er无奈你斯恶坑爹坑爹快递er好几个合肥卡西欧欸我