摘要：
https://blog.csdn.net/feijiges/article/details/77949502 阅读全文
摘要：
资料： https://developers.weixin.qq.com/community/develop/doc/00044ae90742f8c82fb78fcae56800 //兼容微信6.74 ios12版本 var u = navigator.userAgent;var isiOS = ! 阅读全文