<el-date-picker :picker-options="startPickerOptions()" value-format="yyyy-MM-dd HH:mm:ss" v-model="form.applyFixPlan" type="datetime" placeholder="选择日期时间">
</el-date-picker>在method中定义startPickerOptions（）
this.$dayjs是Day.js的封装
Day.js中文网
一天的毫秒数为 24*3600*1000= 86400000 = 8.64*10的7次方 = 8.64e7
获取今日之前的日期- 用于今日(包含今日)日期之后不可选限制Date.now() - 8.64e7
今日(不含今日)之后日期不可选
Date.now() - 8.64e6
startPickerOptions () {if (this.form.applyFixPlan != undefined) {let dateYMD = this.$dayjs(this.form.applyFixPlan).format('YYYY-MM-DD')let dateNow = this.$dayjs().format('YYYY-MM-DD')let dateHMS = this.$dayjs().format('HH:mm:ss')let pickerDate = dateYMD === dateNowreturn {//因为在选新日期的时候被禁用的时间没有更新，需要手动给赋值selectableRange: pickerDate? dateHMS + ' - 23:59:59' : '00:00:00 - 23:59:59',disabledDate: (time) => {//过去时间不可选return time.getTime() < Date.now() - 8.64e7;}}} else {// 初始默认 过去时间不可选return {disabledDate: (time) => {return time.getTime() < Date.now() - 8.64e7;}}}},
)
)
