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<template>
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<view class="w-picker-view">
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<picker-view class="d-picker-view" :indicator-style="itemHeight" :value="pickVal" @change="handlerChange">
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<picker-view-column class="w-picker-flex2">
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<view class="w-picker-item" v-for="(item,index) in range.fyears" :key="index">{{item}}年</view>
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</picker-view-column>
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<picker-view-column class="w-picker-flex2">
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<view class="w-picker-item" v-for="(item,index) in range.fmonths" :key="index">{{item}}月</view>
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</picker-view-column>
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<picker-view-column class="w-picker-flex2">
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<view class="w-picker-item" v-for="(item,index) in range.fdays" :key="index">{{item}}日</view>
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</picker-view-column>
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<picker-view-column class="w-picker-flex1">
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<view class="w-picker-item">-</view>
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</picker-view-column>
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<picker-view-column class="w-picker-flex2">
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<view class="w-picker-item" v-for="(item,index) in range.tyears" :key="index">{{item}}年</view>
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</picker-view-column>
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<picker-view-column class="w-picker-flex2">
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<view class="w-picker-item" v-for="(item,index) in range.tmonths" :key="index">{{item}}月</view>
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</picker-view-column>
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<picker-view-column class="w-picker-flex2">
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<view class="w-picker-item" v-for="(item,index) in range.tdays" :key="index">{{item}}日</view>
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</picker-view-column>
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</picker-view>
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</view>
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</template>
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<script>
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export default {
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data() {
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return {
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pickVal:[],
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range:{},
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checkObj:{}
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};
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},
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props:{
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itemHeight:{
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type:String,
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default:"44px"
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},
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value:{
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type:[String,Array],
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default(){
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return []
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}
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},
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current:{//是否默认选中当前日期
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type:Boolean,
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default:false
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},
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startYear:{
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type:[String,Number],
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default:1970
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},
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endYear:{
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type:[String,Number],
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default:new Date().getFullYear()
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}
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},
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watch:{
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value(val){
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this.initData();
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}
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},
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created() {
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this.initData();
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},
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methods:{
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formatNum(n){
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return (Number(n)<10?'0'+Number(n):Number(n)+'');
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},
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checkValue(value){
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let strReg=/^\d{4}-\d{2}-\d{2}$/,example="2020-04-03";
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if(!strReg.test(value[0])||!strReg.test(value[1])){
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console.log(new Error("请传入与mode匹配的value值，例["+example+","+example+"]"))
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}
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return strReg.test(value[0])&&strReg.test(value[1]);
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},
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resetToData(fmonth,fday,tyear,tmonth){
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let range=this.range;
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let tmonths=[],tdays=[];
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let yearFlag=tyear!=range.tyears[0];
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let monthFlag=tyear!=range.tyears[0]||tmonth!=range.tmonths[0];
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let ttotal=new Date(tyear,tmonth,0).getDate();
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for(let i=yearFlag?1:fmonth*1;i<=12;i++){
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tmonths.push(this.formatNum(i))
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}
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for(let i=monthFlag?1:fday*1;i<=ttotal;i++){
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tdays.push(this.formatNum(i))
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}
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return{
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tmonths,
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tdays
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}
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},
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resetData(fyear,fmonth,fday,tyear,tmonth){
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let fyears=[],fmonths=[],fdays=[],tyears=[],tmonths=[],tdays=[];
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let startYear=this.startYear;
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let endYear=this.endYear;
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let ftotal=new Date(fyear,fmonth,0).getDate();
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let ttotal=new Date(tyear,tmonth,0).getDate();
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for(let i=startYear*1;i<=endYear;i++){
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fyears.push(this.formatNum(i))
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}
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for(let i=1;i<=12;i++){
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fmonths.push(this.formatNum(i))
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}
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for(let i=1;i<=ftotal;i++){
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fdays.push(this.formatNum(i))
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}
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for(let i=fyear*1;i<=endYear;i++){
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tyears.push(this.formatNum(i))
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}
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for(let i=fmonth*1;i<=12;i++){
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tmonths.push(this.formatNum(i))
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}
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for(let i=fday*1;i<=ttotal;i++){
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tdays.push(this.formatNum(i))
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}
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return {
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fyears,
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fmonths,
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fdays,
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tyears,
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tmonths,
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tdays
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}
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},
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getData(dVal){
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let start=this.startYear*1;
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let end=this.endYear*1;
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let value=dVal;
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let flag=this.current;
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let aToday=new Date();
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let tYear,tMonth,tDay,tHours,tMinutes,tSeconds,pickVal=[];
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let initstartDate=new Date(start.toString());
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let endDate=new Date(end.toString());
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if(start>end){
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initstartDate=new Date(end.toString());
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endDate=new Date(start.toString());
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};
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let startYear=initstartDate.getFullYear();
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let startMonth=initstartDate.getMonth()+1;
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let endYear=endDate.getFullYear();
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let fyears=[],fmonths=[],fdays=[],tyears=[],tmonths=[],tdays=[],returnArr=[],startDVal=[],endDVal=[];
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let curMonth=flag?value[1]*1:(startDVal[1]*1+1);
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let curMonth1=flag?value[5][1]*1:(value[5]*1+1);
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let totalDays=new Date(value[0],value[1],0).getDate();
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let totalDays1=new Date(value[4],value[5],0).getDate();
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for(let s=startYear;s<=endYear;s++){
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fyears.push(this.formatNum(s));
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};
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for(let m=1;m<=12;m++){
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fmonths.push(this.formatNum(m));
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};
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for(let d=1;d<=totalDays;d++){
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fdays.push(this.formatNum(d));
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};
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for(let s=value[0]*1;s<=endYear;s++){
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tyears.push(this.formatNum(s));
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};
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if(value[4]*1>value[0]*1){
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for(let m=1;m<=12;m++){
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tmonths.push(this.formatNum(m));
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};
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for(let d=1;d<=totalDays1;d++){
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tdays.push(this.formatNum(d));
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};
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}else{
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for(let m=value[1]*1;m<=12;m++){
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tmonths.push(this.formatNum(m));
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};
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for(let d=value[2]*1;d<=totalDays1;d++){
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tdays.push(this.formatNum(d));
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};
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};
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pickVal=[
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fyears.indexOf(value[0])==-1?0:fyears.indexOf(value[0]),
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fmonths.indexOf(value[1])==-1?0:fmonths.indexOf(value[1]),
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fdays.indexOf(value[2])==-1?0:fdays.indexOf(value[2]),
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0,
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tyears.indexOf(value[4])==-1?0:tyears.indexOf(value[4]),
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tmonths.indexOf(value[5])==-1?0:tmonths.indexOf(value[5]),
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tdays.indexOf(value[6])==-1?0:tdays.indexOf(value[6])
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];
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return {
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fyears,
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fmonths,
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fdays,
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tyears,
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tmonths,
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tdays,
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pickVal
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}
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},
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getDval(){
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let value=this.value;
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let fields=this.fields;
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let dVal=null;
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let aDate=new Date();
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let fyear=this.formatNum(aDate.getFullYear());
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let fmonth=this.formatNum(aDate.getMonth()+1);
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let fday=this.formatNum(aDate.getDate());
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let tyear=this.formatNum(aDate.getFullYear());
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let tmonth=this.formatNum(aDate.getMonth()+1);
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let tday=this.formatNum(aDate.getDate());
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if(value&&value.length>0){
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let flag=this.checkValue(value);
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if(!flag){
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dVal=[fyear,fmonth,fday,"-",tyear,tmonth,tday]
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}else{
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dVal=[...value[0].split("-"),"-",...value[1].split("-")];
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}
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}else{
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dVal=[fyear,fmonth,fday,"-",tyear,tmonth,tday]
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}
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return dVal;
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},
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initData(){
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let range=[],pickVal=[];
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let result="",full="",obj={};
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let dVal=this.getDval();
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let dateData=this.getData(dVal);
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let fyears=[],fmonths=[],fdays=[],tyears=[],tmonths=[],tdays=[];
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let fyear,fmonth,fday,tyear,tmonth,tday;
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pickVal=dateData.pickVal;
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fyears=dateData.fyears;
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fmonths=dateData.fmonths;
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fdays=dateData.fdays;
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tyears=dateData.tyears;
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tmonths=dateData.tmonths;
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tdays=dateData.tdays;
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range={
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fyears,
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fmonths,
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fdays,
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tyears,
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tmonths,
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tdays,
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}
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fyear=range.fyears[pickVal[0]];
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fmonth=range.fmonths[pickVal[1]];
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fday=range.fdays[pickVal[2]];
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tyear=range.tyears[pickVal[4]];
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tmonth=range.tmonths[pickVal[5]];
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tday=range.tdays[pickVal[6]];
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obj={
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fyear,
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fmonth,
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fday,
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tyear,
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tmonth,
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tday
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}
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result=`${fyear+'-'+fmonth+'-'+fday+'至'+tyear+'-'+tmonth+'-'+tday}`;
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this.range=range;
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this.checkObj=obj;
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this.$nextTick(()=>{
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this.pickVal=pickVal;
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});
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this.$emit("change",{
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result:result,
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value:result.split("至"),
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obj:obj
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})
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},
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handlerChange(e){
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let arr=[...e.detail.value];
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let result="",full="",obj={};
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let year="",month="",day="",hour="",minute="",second="",note=[],province,city,area;
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let checkObj=this.checkObj;
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let days=[],months=[],endYears=[],endMonths=[],endDays=[],startDays=[];
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let mode=this.mode;
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let col1,col2,col3,d,a,h,m;
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let xDate=new Date().getTime();
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let range=this.range;
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let fyear=range.fyears[arr[0]]||range.fyears[range.fyears.length-1];
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let fmonth=range.fmonths[arr[1]]||range.fmonths[range.fmonths.length-1];
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let fday=range.fdays[arr[2]]||range.fdays[range.fdays.length-1];
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let tyear=range.tyears[arr[4]]||range.tyears[range.tyears.length-1];
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let tmonth=range.tmonths[arr[5]]||range.tmonths[range.tmonths.length-1];
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let tday=range.tdays[arr[6]]||range.tdays[range.tdays.length-1];
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let resetData=this.resetData(fyear,fmonth,fday,tyear,tmonth);
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if(fyear!=checkObj.fyear||fmonth!=checkObj.fmonth||fday!=checkObj.fday){
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arr[4]=0;
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arr[5]=0;
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arr[6]=0;
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range.tyears=resetData.tyears;
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range.tmonths=resetData.tmonths;
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range.tdays=resetData.tdays;
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tyear=range.tyears[0];
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checkObj.tyears=range.tyears[0];
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tmonth=range.tmonths[0];
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checkObj.tmonths=range.tmonths[0];
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tday=range.tdays[0];
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checkObj.tdays=range.tdays[0];
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}
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if(fyear!=checkObj.fyear||fmonth!=checkObj.fmonth){
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range.fdays=resetData.fdays;
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};
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if(tyear!=checkObj.tyear){
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arr[5]=0;
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arr[6]=0;
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let toData=this.resetToData(fmonth,fday,tyear,tmonth);
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range.tmonths=toData.tmonths;
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range.tdays=toData.tdays;
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tmonth=range.tmonths[0];
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checkObj.tmonths=range.tmonths[0];
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tday=range.tdays[0];
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checkObj.tdays=range.tdays[0];
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};
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if(tmonth!=checkObj.tmonth){
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arr[6]=0;
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let toData=this.resetToData(fmonth,fday,tyear,tmonth);
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range.tdays=toData.tdays;
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tday=range.tdays[0];
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checkObj.tdays=range.tdays[0];
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};
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result=`${fyear+'-'+fmonth+'-'+fday+'至'+tyear+'-'+tmonth+'-'+tday}`;
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obj={
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fyear,fmonth,fday,tyear,tmonth,tday
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}
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this.checkObj=obj;
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this.$nextTick(()=>{
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this.pickVal=arr;
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})
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this.$emit("change",{
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result:result,
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value:result.split("至"),
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obj:obj
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})
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}
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}
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}
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</script>
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<style lang="scss">
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@import "./w-picker.css";
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</style>
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