initDateRange () {

const end = new Date(new Date(new Date().toLocaleDateString()).getTime() + 24 * 60 * 60 * 1000 - 1)

const start = new Date(new Date(new Date().toLocaleDateString()).getTime())

var dayCount = this.getDaysOfMonth()

start.setTime(start.getTime() - 3600 * 1000 * 24 * (dayCount - 1))

this.timeArray = [start, end]

},

getDaysOfMonth () {

var date = new Date()

var year = date.getFullYear()

var month = date.getMonth() + 1

var d = new Date(year, month, 0)

return d.getDate()

},

<el-form-item label="案發日期">

<el-date-picker

v-model="timeArray"

type="daterange"

range-separator="至"

start-placeholder="開始日期"

end-placeholder="結束日期"

value-format = "timestamp" @change="timeChange"

:picker-options="pickerOptions"

>

</el-date-picker>

</el-form-item>