微信小程序实现日历功能

<view class="calendar"> <view class="selectDate"> <view class="goleft iconfont icon-jianzuo" bindtap="prevMonth"></view> <view class="date-wrap">  {{year}}年{{month}}月 </view> <view class="goright iconfont icon-jianzuo" bindtap="nextMonth"></view> </view> <view class="week"> <view wx:for="{{weekArr}}" wx:for-index="index" wx:for-item="item" wx:key="key" style="width:{{param}}px;height:{{param-17}}px;line-height:{{param-17}}px">{{item}}</view> </view> <view class="date" style='width: {{ param * 7 }}px;'> <block wx:for="{{dateArr}}" wx:for-index="index" wx:for-item="item" wx:key="key">  <view style="{{index ==0?'margin-left:'+ param *firstDay +'px;':''}}width:{{param}}px;height:{{param-10}}px;line-height:{{param-10}}px;" class="{{index+1==day?'today':''}} {{index+1==day&&isClock?'clockOn':''}}"><view class="day">{{item}}</view></view> </block> </view></view><!--end calendar-->

data: { year:'', month:'', day:'', weekArr: ['日', '一', '二', '三', '四', '五','六'], dateArr:[], firstDay:'', lastDay:'', param:null, clockNum:3, },getDate: function () { //获取当月日期 var mydate = new Date(); var year = mydate.getFullYear(); var month = mydate.getMonth(); var months = month + 1; this.data.year = year; this.data.month = months; this.data.day = mydate.getDate(); var fist = new Date(year, month, 1); this.data.firstDay = fist.getDay(); var last = new Date(year, months, 0);  this.data.lastDay = last.getDate(); this.setData({  year: this.data.year,  month: this.data.month,  day: this.data.day,  firstDay: this.data.firstDay,  lastDay: this.data.lastDay }) console.log("今天：" + this.data.day); }, setDate: function () { for (var i = 1; i < this.data.lastDay + 1; i++) {  this.data.dateArr.push(i); } this.setData({  dateArr: this.data.dateArr,  firstDay: this.data.firstDay }) }, prevMonth:function(){ //上一月 var months=""; var years=""; if(this.data.month ==1){  years=this.data.year-1  this.data.month=12;  months=this.data.month; }else{  years=this.data.year;  months = this.data.month - 1; }  var first = new Date(years, months-1, 1); this.data.firstDay = first.getDay(); var last = new Date(years, months, 0); this.data.lastDay = last.getDate();  this.setData({  month: months,  year:years,  firstDay: this.data.firstDay,  lastDay: this.data.lastDay }) this.data.dateArr = []; for (var i = 1; i < this.data.lastDay + 1; i++) {  this.data.dateArr.push(i); } this.setData({  dateArr: this.data.dateArr }) }, nextMonth:function(){ //下一月 var months=""; var years=""; if(this.data.month== 12){  this.data.month=0;  months = this.data.month;  years = this.data.year+1; }else{  months = this.data.month+1;  years = this.data.year; } var months = this.data.month + 1; var first = new Date(years, months-1,1); this.data.firstDay= first.getDay(); var last = new Date(years,months,0); this.data.lastDay= last.getDate(); this.setData({  month: months,  year:years,  firstDay:this.data.firstDay,  lastDay:this.data.lastDay }) this.data.dateArr = []; for (var i = 1; i < this.data.lastDay + 1; i++) {  this.data.dateArr.push(i); } this.setData({  dateArr: this.data.dateArr }) },onLoad: function (options) { this.getDate(); this.setDate(); var res = wx.getSystemInfoSync(); this.setData({  param:res.windowHeight/12, }) },