上代码

<el-date-picker
          value-format="YYYY-MM-DD"
          v-model="form.visitDate"
          type="date"
          @change="dateSearch"
          placeholder="预约日期"
        />

 设置默认值为明天

const start1 = new Date();

start1.setTime(start1.getTime() + 3600 * 1000 * 24);
const form = ref({
  visitDate: formatDate(start1, "yyyy-MM-dd"),
});