isMiniProgram(n){
return new Promise((resolve, reject) => {
if(-1 == navigator.userAgent.toLowerCase().indexOf("micromessenger")){
resolve(false)
return
}else{
wx.miniProgram.getEnv((res) => {
if(!res.miniprogram){
resolve(false)
return
}else{
resolve(true)
}
})
}
})
}