<el-date-picker
        v-model="value1"
        type="daterange"
        :picker-options="pickerOptions0"
        range-separator="至"
        start-placeholder="开始日期"
        end-placeholder="结束日期">
      </el-date-picker>

设置选择今天以及今天之后的日期

pickerOptions0: {
          disabledDate(time) {
            return time.getTime() < Date.now() - 8.64e7;
          }
        }, 

设置选择今天以及今天以前的日期

data (){
   return {
       pickerOptions0: {
          disabledDate(time) {
            return time.getTime() > Date.now() - 8.64e6
          }
        },  
   }     
}   

设置选择今天之后的日期（不能选择当天时间）

data (){
   return {
       pickerOptions0: {
          disabledDate(time) {
            return time.getTime() < Date.now();
          }
        },  
   }     
}    

设置选择今天之前的日期（不能选择当天）

data (){
   return {
       pickerOptions0: {
          disabledDate(time) {
            return time.getTime() > Date.now();
          }
        },  
   }     
}    

设置选择三个月之前到今天的日期

data (){
   return {
       pickerOptions0: {
          disabledDate(time) {
            let curDate = (new Date()).getTime();
            let three = 90 * 24 * 3600 * 1000;
            let threeMonths = curDate - three;
            return time.getTime() > Date.now() || time.getTime() < threeMonths;;
          }
        },  
   }     
}