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HarmonyOS
<script type="text/x-template" id="modeProgram">
<div>
<div class="calendar">
<ul class="day header">
<li class="dayList" v-for="(m, index) in 7" v-bind:key="m.index" v-text="getWeekdayText(m)"></li>
</ul>
<div class="day content">
<router-link tag="div" to="" class="dayList" v-bind:class=" m == 12 ? 'g' : null || m == 28 ? 'r' : null " v-for="(m, index) in 42" v-bind:key="index">
<transition name="opacity" mode="out-in">
<div class="text" v-if=" generateCalendar({method:'query',index:m}) ">
<p v-for="l in 3">21391232103809f9dsiljlaksdjlkkl</p>
</div>
</transition>
<transition name="opacity" mode="out-in">
<div class="num" v-text=" generateCalendar({method:'get',index:m}) "></div>
</transition>
</router-link>
</div>
</div>
<div class="snyc">
<div class="title" v-on:click="miao = !miao">
<span>同步与记录</span>
<span class="icon-more" v-bind:class="{av:miao}">
<span></span>
<span></span>
</span>
</div>
<transition name="opacity" mode="out-in">
<div v-if="miao">
<div class="herader">
<div class="tap">设备</div>
<div class="tap">历史记录</div>
</div>
<ul class="list">
<li class="content">
<div class="select">
<input />
</div>
<div class="images">图片</div>
<div class="name">名字</div>
<div class="downloading">下载</div>
<div class="fn">操作</div>
</li>
<li class="content">
<div class="select">
<input />
</div>
<div class="images">
</div>
<div class="name"></div>
<div class="downloading"></div>
<div class="fn">
<button>删除</button>
</div>
</li>
<li class="content">
<div class="select"></div>
<div class="images"></div>
<div class="name"></div>
<div class="downloading"></div>
<div class="fn">
<button>添加</button>
</div>
</li>
</ul>
</div>
</transition>
</div>
</div>
</script>
<script>
Vue.component('mode-program', {
template:'#modeProgram',
data (){
return{
Date:{
year:null,
month:null
},
miao:true
}
},
computed:{
details () {
return store.state.details.data
},
nowYear(){
return this.Date.year
},
nowMonth(){
return this.Date.month+1
}
},
watch:{
'Date.year':function () {
window.dayNum = 0
},
'Date.month':function () {
window.dayNum = 0
}
},
created (){
window.dayNum = 0
this.setDate();
},
mounted (){
},
methods:{
setDate(){
let time = new Date()
this.Date.year = time.getFullYear()
this.Date.month = time.getMonth()
},
lastMonth:function () {
if ( this.Date.month <= 0 ){
this.Date.month = 11;
this.lastYear();
}else {
--this.Date.month;
}
},
nextMonth:function () {
if ( this.Date.month >= 11 ){
this.Date.month = 0;
this.nextYear();
}else {
++this.Date.month;
}
},
lastYear:function () {
this.Date.year <= 1970 ? this.Date.year = 1970 : --this.Date.year
},
nextYear:function () {
++this.Date.year
},
getWeekdayText:function(m) {
let text
if (m == 1){ text = '一' }
if (m == 2){ text = '二' }
if (m == 3){ text = '三' }
if (m == 4){ text = '四' }
if (m == 5){ text = '五' }
if (m == 6){ text = '六' }
if (m == 7){ text = '日' }
return text
},
generateCalendar:function(s) {
let method = s.method
let time = new Date().setFullYear(this.Date.year != null ? this.Date.year : '',this.Date.month != null ? this.Date.month : '',1)
let day = new Date( time ).getDate()
let month = this.Date.month != null ? new Date( time ).getMonth() : new Date().getMonth()
let year = this.Date.year != null ? new Date( time ).getFullYear() : new Date().getFullYear()
let weekDay = this.Date.year != null ? new Date( time ).getDay() : new Date().getDay()
weekDay == 0 ? weekDay = 7 : weekDay
let index = s.index ? s.index : 0
let isLeapYear = year % 4 == 0 ? [31,29,31,30,31,30,31,31,30,31,30,31] : [31,28,31,30,31,30,31,31,30,31,30,31]
let e = {
1:[3,5,1,10,17,21],
2:[7,11,16],
3:[9,22,30]
}
if ( s.index >= weekDay && window.dayNum < isLeapYear[month] ){
if ( method === 'query' ){
return true
}
if ( method === 'get' ){
window.dayNum = ++window.dayNum
return window.dayNum
}
}
}
}
})
</script>当我更改里面的miao的时候，calendar里面的getWeekdayText()和generateCalendar()会被重新调用，为什么会这样？
经实验，v-if和v-show都有影响
https://jsfiddle.net/d4ffo06k/1/
在开关下面同步与记录的时候下面日期的东西就会消失
个人意见：这里使用的是v-if，v-if会根据miao的值来重新渲染加载，是所有该div下的数据和视图重新渲染，所以会再次调用方法，如果不想这样，可以使用v-show来试试。