功能点

1.
<view class="userinfo">
    <button wx:if="{{!hasUserInfo && canIUse}}" open-type="getUserInfo" bindgetuserinfo="getUserInfo"> 获取头像昵称 </button>
    <block wx:else>
      <image bindtap="bindViewTap" class="userinfo-avatar" src="{{userInfo.avatarUrl}}" mode="cover"></image>
      <text class="userinfo-nickname">{{userInfo.nickName}}</text>
    </block>
  </view>
 
2.
 
//index.js
//获取应用实例
const app = getApp()

Page({
  data: {
    motto: 'Hello World',
    userInfo: {},
    hasUserInfo: false,
    canIUse: wx.canIUse('button.open-type.getUserInfo')
  },
  //事件处理函数
  bindViewTap: function() {
    wx.navigateTo({
      url: '../logs/logs'
    })
  },
  onLoad: function () {
    if (app.globalData.userInfo) {
      this.setData({
        userInfo: app.globalData.userInfo,
        hasUserInfo: true
      })
    } else if (this.data.canIUse){
      // 由于 getUserInfo 是网络请求,可能会在 Page.onLoad 之后才返回
      // 所以此处加入 callback 以防止这种情况
      app.userInfoReadyCallback = res => {
        this.setData({
          userInfo: res.userInfo,
          hasUserInfo: true
        })
      }
    } else {
      // 在没有 open-type=getUserInfo 版本的兼容处理
      wx.getUserInfo({
        success: res => {
          app.globalData.userInfo = res.userInfo
          this.setData({
            userInfo: res.userInfo,
            hasUserInfo: true
          })
        }
      })
    }
  },
  getUserInfo: function(e) {
    console.log(e)
    app.globalData.userInfo = e.detail.userInfo
    this.setData({
      userInfo: e.detail.userInfo,
      hasUserInfo: true
    })
  }
})
 
3.
.userinfo {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.userinfo-avatar {
  128rpx;
  height: 128rpx;
  margin: 20rpx;
  border-radius: 50%;
}

.userinfo-nickname {
  color: #aaa;
}

.usermotto {
  margin-top: 200px;
}
 
 
 
 
 
3.
//计算两个日期相差的天数
function DateDiff(sDate1, sDate2) {
  var aDate, oDate1, oDate2, iDays;
  aDate = sDate1.split("-");
  oDate1 = new Date(aDate[0] + '-' + aDate[1] + '-' + aDate[2]);
  aDate = sDate2.split("-");
  oDate2 = new Date(aDate[0] + '-' + aDate[1] + '-' + aDate[2]);

  iDays = parseInt(Math.abs(oDate1 - oDate2) / 1000 / 60 / 60 / 24);
  return iDays;
}
 
 
 
 
//登陆判断
wx.getSetting({
      success(res) {
        if(res.authSetting['scope.userInfo']) {
          wx.getUserInfo({
            success: function (res){
  wx.setStorage({
            key: 'can_getuserinfo',
            data: 1
          })
          _this.login(wx.getStorageSync('userInfo'))
          wx.navigateTo({
            url: '../certification/certification'
          })

            }
          })
   
        } else {
          wx.setStorage({
            key: 'can_getuserinfo',
            data: 0
          })
        }
      }
    })
 
 
 
 
5.
 
 
原文地址:https://www.cnblogs.com/lyplucky/p/10501557.html