怎么修改addtable和cancle方法使之能够在新增数据后按下取消能去掉这一行

为了使 `AddTable` 和 `cancel` 方法能够实现新增一行并在取消时删除该行的功能，需要对这两个方法进行一些调整。以下是一个具体的解决方案：

### 调整后的代码

#### `AddTable` 方法

保持现有逻辑不变，但在每次调用 `AddTable` 时记录新行的键。

methods: {
  AddTable() {
    const newRecord = {
      key: this.uniqueKeyGenerator(),
      meterNum: '',
      gmType2: '',
      vendorCode: '',
      meterNum1: '',
      batch: '',
      productionDate: null, // 确保日期字段为空
      validityYears: '',
      iccid: '',
      imei: '',
      statu: '',
      depart: '',
      departDate: null, // 确保日期字段为空
      intakeDirection: '',
      ware1house: '',
      gauge: '',
      minFlow: '',
      maxFlow: '',
      maxWorkPressure: '',
      workVoltage: '',
      editable: true // 启用编辑模式
    };
    this.data = [...this.data, newRecord];
    this.cacheData = [...this.cacheData, { ...newRecord }];
    this.editingKey = newRecord.key;
    // 记录新行的键
    this.newRowKeys = [...this.newRowKeys, newRecord.key];
  },
  // 其他方法...
}

#### `cancel` 方法

在 `cancel` 方法中检查当前编辑的行是否是新行，如果是则删除它。

methods: {
  cancel(key) {
    this.editingKey = '';
    if (this.newRowKeys.includes(key)) {
      // 如果是新行，则直接删除
      this.data = this.data.filter(item => item.key !== key);
      this.cacheData = this.cacheData.filter(item => item.key !== key);
      this.newRowKeys = this.newRowKeys.filter(rowKey => rowKey !== key);
    } else {
      // 否则，恢复原始数据
      const newData = [...this.data];
      const targetIndex = newData.findIndex(item => key === item.key);
      if (targetIndex !== -1) {
        const target = newData[targetIndex];
        const originalRecord = this.cacheData.find(item => item.key === key);
        if (originalRecord) {
          Object.assign(target, originalRecord);
          target.editable = false; // 禁用编辑模式
          this.data = newData;
        }
      }
    }
  },
  // 其他方法...
}

### 完整的方法部分

export default {
  name: 'BiMeterReplace',
  mixins: [JeecgListMixin, mixinDevice, initColumnsMixin],
  components: {
    StockMeterBaseDrawer,
    JSuperQuery,
    draggable,
    BizBatchImport,
    Drawer,
    StockMeterAddForm,
    ADatePicker: DatePicker,
  },
  data() {
    this.cacheData = data.map(item => ({ ...item }));
    return {
      data,
      editingKey: '',
      visible: false,
      newRowKeys: [],
      defColumns: [
        // 列定义...
      ],
      url: {
        list: '/stock/stockMeterBase/list',
        delete: '/stock/stockMeterBase/delete',
        deleteBatch: '/stock/stockMeterBase/deleteBatch',
        changeStatusBatch: '/stock/stockMeterBase/changeStatusBatch',
        exportXlsxUrl: '/stock/stockMeterBase/exportExcel',
        importXlsxUrl: '/stock/stockMeterBase/importExcel',
        exportXlsxTemplateUrl: '/stock/stockMeterBase/exportExcelTemplate'
      },
      dictOptions: {},
      superFieldList: []
    };
  },
  created() {
    this.getSuperFieldList();
  },
  computed: {
    uniqueKeyGenerator() {
      return () => `${Date.now()}-${Math.random().toString(36).substr(2, 9)}`;
    }
  },
  methods: {
    AddTable() {
      const newRecord = {
        key: this.uniqueKeyGenerator(),
        meterNum: '',
        gmType2: '',
        vendorCode: '',
        meterNum1: '',
        batch: '',
        productionDate: null, // 确保日期字段为空
        validityYears: '',
        iccid: '',
        imei: '',
        statu: '',
        depart: '',
        departDate: null, // 确保日期字段为空
        intakeDirection: '',
        ware1house: '',
        gauge: '',
        minFlow: '',
        maxFlow: '',
        maxWorkPressure: '',
        workVoltage: '',
        editable: true // 启用编辑模式
      };
      this.data = [...this.data, newRecord];
      this.cacheData = [...this.cacheData, { ...newRecord }];
      this.editingKey = newRecord.key;
      // 记录新行的键
      this.newRowKeys = [...this.newRowKeys, newRecord.key];
    },
    handleChange(value, key, column) {
      const newData = [...this.data];
      const target = newData.find(item => key === item.key);
      if (target) {
        target[column] = value;
        this.data = newData;
      }
    },
    edit(key) {
      const newData = [...this.data];
      const target = newData.find(item => key === item.key);
      this.editingKey = key;
      if (target) {
        target.editable = true;
        this.data = newData;
      }
    },
    save(key) {
      const newData = [...this.data];
      const newCacheData = [...this.cacheData];
      const target = newData.find(item => key === item.key);
      const targetCache = newCacheData.find(item => key === item.key);
      if (target && targetCache) {
        delete target.editable;
        this.data = newData;
        Object.assign(targetCache, target);
        this.cacheData = newCacheData;
      } else {
        console.error('Target or Cache not found');
      }
      this.editingKey = '';
      this.$forceUpdate();
    },
    cancel(key) {
      this.editingKey = '';
      if (this.newRowKeys.includes(key)) {
        // 如果是新行，则直接删除
        this.data = this.data.filter(item => item.key !== key);
        this.cacheData = this.cacheData.filter(item => item.key !== key);
        this.newRowKeys = this.newRowKeys.filter(rowKey => rowKey !== key);
      } else {
        // 否则，恢复原始数据
        const newData = [...this.data];
        const targetIndex = newData.findIndex(item => key === item.key);
        if (targetIndex !== -1) {
          const target = newData[targetIndex];
          const originalRecord = this.cacheData.find(item => item.key === key);
          if (originalRecord) {
            Object.assign(target, originalRecord);
            target.editable = false; // 禁用编辑模式
            this.data = newData;
          }
        }
      }
    },
    showDrawer() {
      this.visible = true;
    },
    onClose() {
      this.visible = false;
    },
    getSuperFieldList() {
      let fieldList = [];
      // 字段列表...
      this.superFieldList = fieldList;
    }
  }
};

通过以上调整，您可以在新增数据后按下取消按钮，该行将被正确地删除或恢复到初始状态。