let target = navigator.userAgent.toLowerCase();let isWeixin=(/micromessenger/.test(target)?true:false;原文查看https://blog.csdn.net/weixin_41529228/article/details/84326317?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-1.nonecase&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-1.nonecase