帮我优化这段代码 handleWorkOrderMessage() { // 待办理、待审核二级弹窗 console.log(this.pWorkOrder.orderState); if (this.pWorkOrder.orderState === '20') { this.popupSitch.description.show = true; this.popupSitch.description.label = '经办意见'; this.description = '按要求完成，下单！'; } // 接单 if (this.pWorkOrder.orderState === '30') { this.popupSitch.description.show = true; this.popupSitch.description.label = '经办意见'; this.description = '按要求完成，接单！'; } // 反馈 if (this.pWorkOrder.orderState === '40') { this.popupSitch.description.show = true; this.popupSitch.description.label = '经办意见'; this.popupSitch.image.label = '反馈图片'; this.popupSitch.image.show = true; this.description = '按要求完成，反馈！'; } // 审核关闭 if (this.pWorkOrder.orderState === '50') { this.popupSitch.description.show = true; this.popupSitch.description.label = '经办意见'; this.description = '按要求完成，审核关闭！'; } this.$refs.orderPopup.open(); },

可以尝试以下优化：

1. 将重复的代码提取出来，避免重复写相同的语句。例如，多个条件下都需要设置 `popupSitch.description.show` 为 `true`，可以在代码开头先设置为 `false`，然后根据条件进行修改。

2. 使用 switch 语句替代多个 if 语句，可以让代码更加清晰易懂。

3. 如果有多处使用的字符串，可以将其提取为常量或者变量，方便修改和管理。

下面是优化后的代码示例：

handleWorkOrderMessage() {
  const DES_LABEL = '经办意见';
  const DESC_COMPLETE = '按要求完成，';
  const DESC_ORDER = '下单！';
  const DESC_ACCEPT = '接单！';
  const DESC_FEEDBACK = '反馈！';
  const DESC_CLOSE = '审核关闭！';

  this.popupSitch = {
    description: {
      show: false,
      label: ''
    },
    image: {
      show: false,
      label: ''
    }
  };

  switch (this.pWorkOrder.orderState) {
    case '20':
      this.popupSitch.description.show = true;
      this.popupSitch.description.label = DES_LABEL;
      this.description = DESC_COMPLETE + DESC_ORDER;
      break;
    case '30':
      this.popupSitch.description.show = true;
      this.popupSitch.description.label = DES_LABEL;
      this.description = DESC_COMPLETE + DESC_ACCEPT;
      break;
    case '40':
      this.popupSitch.description.show = true;
      this.popupSitch.description.label = DES_LABEL;
      this.popupSitch.image.show = true;
      this.popupSitch.image.label = '反馈图片';
      this.description = DESC_COMPLETE + DESC_FEEDBACK;
      break;
    case '50':
      this.popupSitch.description.show = true;
      this.popupSitch.description.label = DES_LABEL;
      this.description = DESC_COMPLETE + DESC_CLOSE;
      break;
    default:
      break;
  }

  this.$refs.orderPopup.open();
},