微信小程序iOS兼容问题 苹果手机白屏 页面不加载 安卓手机正常

开发工具中以及真机调试都无任何报错，在预览模式、体验版本、线上版本苹果手机无法正常打开小程序，安卓手机一切正常

苹果手机调试报错：

thirdScriptError

SyntaxError

at line:7696,column:96577,SyntaxError: Invalid regular expression: unrecognized character after (? Stack: (native code)

at evaluateScriptFile (WAServiceMainContext.js:2:96577)

at value (WAServiceMainContext.js:2:137383)

at (WAServiceMainContext.js:2:139421)

at (WAServiceMainContext.js:2:134988)

at (WAServiceMainContext.js:2:225318)

at (WAServiceMainContext.js:2:224286)

at forEach (native code)

at (WAServiceMainContext.js:2:224250)

at (WAServiceMainContext.js:2:225318)

at _ (WAServiceMainContext.js:2:77637)

global code

这是由于正则引起的，如果正则表达式中包含（?<=、?<!、?!、?=）的话 , 在安卓手机上正常 , 但是在ios上会报错

如：

var reg = /(?<=(-)).*/g

for (let i in list.pointData) {

console.log(list.pointData[i].day.match(reg).toString())

list.pointData[i].dayer = list.pointData[i].day.match(reg).toString()

}

最果断的办法是直接去掉这段正则