首先在时间选择器中定义 :picker-options=“pickerOptions”

<el-date-picker range-separator="至" start-placeholder="开始日期" endplaceholder="结束日期"  :picker-options="pickerOptions"></el-date-picker>

在computed 中写入：
我这边是根据time_space的值来判断到底是什么样的范围

computed:{
    pickerOptions() {
        return {
            disabledDate:time=>{
             if(that.time_space==1){
             	return new Date(that.endTime).getTime() < time.getTime()|| new Date(that.startTime).getTime() > time.getTime()
             }
             if(that.time_space==2){
                 return new Date(that.startTime).getTime() < time.getTime()
             }  
            }
        };
    }
}, 

如果还看不懂,那动手试一试哦~，会有不一样的收获！加油！