选择开始时间： 选择结束时间：
DateTimePicker 组件：
```typescript <template v-slot:start_time="{ form, formItemKey }"> <el-date-picker v-model="form[formItemKey]" type="datetime" placeholder="选择开始时间" value-format="yyyy-MM-dd HH:mm:ss" :picker-options="pickerOptionsStart" @change="startTimeStatus($event)" default-time="00:00:00" style="width:270px" ></el-date-picker> </template> <template v-slot:end_time="{ form, formItemKey }"> <el-date-picker v-model="form[formItemKey]" type="datetime" placeholder="选择结束时间" value-format="yyyy-MM-dd HH:mm:ss" :picker-options="pickerOptionsEnd" @change="endTimeStatus($event)" default-time="23:59:59" style="width:270px" ></el-date-picker> </template> ```typescript pickerOptionsStart: { disabledDate: time => { let endDateVal = this.end_time if (endDateVal) { return time.getTime() > new Date(endDateVal).getTime() } } }, pickerOptionsEnd: { disabledDate: time => { let beginDateVal = this.start_time if (beginDateVal) { return time.getTime() < new Date(beginDateVal).getTime() } } }, startTimeStatus(event) { this.start_time = event }, endTimeStatus(event) { this.end_time = event },