Vue.js创建Calendar日历效果

2019-11-20 08:36:07

字体：大中小

来源：转载

供稿：网友

使用 Vue.js 进行数据与视图的绑定，数据更新会让视图自动进行更新，类似 Android 里面的 DataBinding。
实现一个HTML的日历效果。

html 部分

<div id="calendar"> <!-- 年份 月份 --> <div class="month"> <ul>  <li class="arrow" @click="pickPre(currentYear,currentMonth)">❮</li>  <li class="year-month" @click="pickYear(currentYear,currentMonth)">  <span class="choose-year">{{ currentYear }}</span>  <span class="choose-month">{{ currentMonth }}月</span>  </li>  <li class="arrow" @click="pickNext(currentYear,currentMonth)">❯</li> </ul> </div> <!-- 星期 --> <ul class="weekdays"> <li>一</li> <li>二</li> <li>三</li> <li>四</li> <li>五</li> <li style="color:red">六</li> <li style="color:red">日</li> </ul> <!-- 日期 --> <ul class="days"> <li @click="pick(day)" v-for="day in days">  <!--本月-->  <span v-if="day.getMonth()+1 != currentMonth" class="other-month">{{ day.getDate() }}</span>  <span v-else>  <!--今天-->  <span v-if="day.getFullYear() == new Date().getFullYear() && day.getMonth() == new Date().getMonth() && day.getDate() == new Date().getDate()" class="active">{{ day.getDate() }}</span>  <span v-else>{{ day.getDate() }}</span>  </span> </li> </ul></div>

id 为 calendar 对应的创建一个 Vue 对象，设置 el 为 ‘#calendar'。

<script type="text/javascript"> new Vue({ el: '#calendar', data: {  currentDay: 1,  currentMonth: 1,  currentYear: 1970,  currentWeek: 1,  days: [], }, created: function() {  this.initData(null); }, methods: {  initData: function(cur) {  var date;  if (cur) {   date = new Date(cur);  } else {   date = new Date();  }  this.currentDay = date.getDate();  this.currentYear = date.getFullYear();  this.currentMonth = date.getMonth() + 1;  this.currentWeek = date.getDay(); // 1...6,0  if (this.currentWeek == 0) {   this.currentWeek = 7;  }  var str = this.formatDate(this.currentYear , this.currentMonth, this.currentDay);  console.log("today:" + str + "," + this.currentWeek);  this.days.length = 0;  // 今天是周日，放在第一行第7个位置，前面6个  for (var i = this.currentWeek - 1; i >= 0; i--) {   var d = new Date(str);   d.setDate(d.getDate() - i);   console.log("y:" + d.getDate());   this.days.push(d);  }  for (var i = 1; i <= 35 - this.currentWeek; i++) {   var d = new Date(str);   d.setDate(d.getDate() + i);   this.days.push(d);  }  },  pick: function(date) {  alert(this.formatDate( date.getFullYear() , date.getMonth() + 1, date.getDate()));  },  pickPre: function(year, month) {  // setDate(0); 上月最后一天  // setDate(-1); 上月倒数第二天  // setDate(dx) 参数dx为 上月最后一天的前后dx天  var d = new Date(this.formatDate(year , month , 1));  d.setDate(0);  this.initData(this.formatDate(d.getFullYear(),d.getMonth() + 1,1));  },  pickNext: function(year, month) {  var d = new Date(this.formatDate(year , month , 1));  d.setDate(35);  this.initData(this.formatDate(d.getFullYear(),d.getMonth() + 1,1));  },  pickYear: function(year, month) {  alert(year + "," + month);  },    // 返回 类似 2016-01-02 格式的字符串  formatDate: function(year,month,day){  var y = year;  var m = month;  if(m<10) m = "0" + m;  var d = day;  if(d<10) d = "0" + d;  return y+"-"+m+"-"+d  }, }, });</script>

完整代码：

<!DOCTYPE html><html lang="en"> <head> <meta charset="UTF-8"> <title>日历</title> <style type="text/css">  * {  box-sizing: border-box;  }    ul {  list-style-type: none;  }    body {  font-family: Verdana, sans-serif;  background: #E8F0F3;  }  #calendar{  width:80%;  margin: 0 auto;  box-shadow: 0 2px 2px 0 rgba(0,0,0,0.14), 0 3px 1px -2px rgba(0,0,0,0.1), 0 1px 5px 0 rgba(0,0,0,0.12);  }  .month {  width: 100%;  background: #00B8EC;  }    .month ul {  margin: 0;  padding: 0;  display: flex;  justify-content: space-between;  }    .year-month {  display: flex;  flex-direction: column;  align-items: center;  justify-content: space-around;  }    .year-month:hover {  background: rgba(150, 2, 12, 0.1);  }    .choose-year {  padding-left: 20px;  padding-right: 20px;  }    .choose-month {  text-align: center;  font-size: 1.5rem;  }    .arrow {  padding: 30px;  }    .arrow:hover {  background: rgba(100, 2, 12, 0.1);  }    .month ul li {  color: white;  font-size: 20px;  text-transform: uppercase;  letter-spacing: 3px;  }    .weekdays {  margin: 0;  padding: 10px 0;  background-color: #00B8EC;  display: flex;  flex-wrap: wrap;  color: #FFFFFF;  justify-content: space-around;  }    .weekdays li {  display: inline-block;  width: 13.6%;  text-align: center;  }    .days {  padding: 0;  background: #FFFFFF;  margin: 0;  display: flex;  flex-wrap: wrap;  justify-content: space-around;  }    .days li {  list-style-type: none;  display: inline-block;  width: 14.2%;  text-align: center;  padding-bottom: 15px;  padding-top: 15px;  font-size: 1rem;  color: #000;  }    .days li .active {  padding: 6px 10px;  border-radius: 50%;  background: #00B8EC;  color: #fff;  }    .days li .other-month {  padding: 5px;  color: gainsboro;  }    .days li:hover {  background: #e1e1e1;  } </style> </head> <body> <h1>CSS 日历</h1> <div id="calendar">  <div class="month">  <ul>   <li class="arrow" @click="pickPre(currentYear,currentMonth)">❮</li>   <li class="year-month" @click="pickYear(currentYear,currentMonth)">   <span class="choose-year">{{ currentYear }}</span>   <span class="choose-month">{{ currentMonth }}月</span>   </li>   <li class="arrow" @click="pickNext(currentYear,currentMonth)">❯</li>  </ul>  </div>  <ul class="weekdays">  <li>一</li>  <li>二</li>  <li>三</li>  <li>四</li>  <li>五</li>  <li style="color:red">六</li>  <li style="color:red">日</li>  </ul>  <ul class="days">  <li @click="pick(day)" v-for="day in days">   <!--今天-->   <span v-if="day.getMonth()+1 != currentMonth" class="other-month">{{ day.getDate() }}</span>   <span v-else>   <!--今天-->   <span v-if="day.getFullYear() == new Date().getFullYear() && day.getMonth() == new Date().getMonth() && day.getDate() == new Date().getDate()" class="active">{{ day.getDate() }}</span>   <span v-else>{{ day.getDate() }}</span>   </span>  </li>  </ul> </div> <script src="http://cdnjs.cloudflare.com/ajax/libs/vue/1.0.18/vue.min.js" type="text/javascript" charset="utf-8"></script> <script type="text/javascript">  new Vue({  el: '#calendar',  data: {   currentDay: 1,   currentMonth: 1,   currentYear: 1970,   currentWeek: 1,   days: [],  },  created: function() {   this.initData(null);  },  methods: {   initData: function(cur) {   var date;   if (cur) {    date = new Date(cur);   } else {    date = new Date();   }   this.currentDay = date.getDate();   this.currentYear = date.getFullYear();   this.currentMonth = date.getMonth() + 1;   this.currentWeek = date.getDay(); // 1...6,0   if (this.currentWeek == 0) {    this.currentWeek = 7;   }   var str = this.formatDate(this.currentYear , this.currentMonth, this.currentDay);   console.log("today:" + str + "," + this.currentWeek);   this.days.length = 0;   // 今天是周日，放在第一行第7个位置，前面6个   for (var i = this.currentWeek - 1; i >= 0; i--) {    var d = new Date(str);    d.setDate(d.getDate() - i);    console.log("y:" + d.getDate());    this.days.push(d);   }   for (var i = 1; i <= 35 - this.currentWeek; i++) {    var d = new Date(str);    d.setDate(d.getDate() + i);    this.days.push(d);   }   },   pick: function(date) {   alert(this.formatDate( date.getFullYear() , date.getMonth() + 1, date.getDate()));   },   pickPre: function(year, month) {   // setDate(0); 上月最后一天   // setDate(-1); 上月倒数第二天   // setDate(dx) 参数dx为 上月最后一天的前后dx天   var d = new Date(this.formatDate(year , month , 1));   d.setDate(0);   this.initData(this.formatDate(d.getFullYear(),d.getMonth() + 1,1));   },   pickNext: function(year, month) {   var d = new Date(this.formatDate(year , month , 1));   d.setDate(35);   this.initData(this.formatDate(d.getFullYear(),d.getMonth() + 1,1));   },   pickYear: function(year, month) {   alert(year + "," + month);   },      // 返回 类似 2016-01-02 格式的字符串   formatDate: function(year,month,day){   var y = year;   var m = month;   if(m<10) m = "0" + m;   var d = day;   if(d<10) d = "0" + d;   return y+"-"+m+"-"+d   },  },  }); </script> </body></html>

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