// 必須是在用戶已經(jīng)授權(quán)的情況下調(diào)用
wx.getUserInfo({
  success: function(res) {
    var userInfo = res.userInfo
    var nickName = userInfo.nickName
    var avatarUrl = userInfo.avatarUrl
    var gender = userInfo.gender //性別 0：未知、1：男、2：女
    var province = userInfo.province
    var city = userInfo.city
    var country = userInfo.country
  }
})