解决el-date-picker日期选择控件少一天的问题

<el-fORM :inline="true" class="demo-form-inline padding-top-20"> 
<el-form-item label="年份"> <div class="block"> 
<el-date-picker 
v-model="searchYear"
type="daterange" 
align="right" 
value-format="yyyy-MM-dd" 
unlink-panels range-separator="至" start-placeholder="开始日期" 
end-placeholder="结束日期" 
:picker-options="Shortcut">
</el-date-picker>
</div>
</el-form-item>

 <DatePicker type="date" @on-change="getStartTime" placeholder="选择日期" style="width: 200px">
 </DatePicker>

getStartTime: function (starTime) {
  console.log(startTime)
},

<DatePicker
@on-change="search.activityTime=$event" 
type="date"
placeholder="Select date"
style="width: 200px"
></DatePicker>