<template>
  <el-form-item label="地电阻率选项:">
    <el-checkbox class="search_item" v-model="eidAll" @change="handleEidAllChange">全选</el-checkbox>
    <el-checkbox-group v-model="searchItem.eid">
      <el-checkbox class="search_item" v-for="item of eidList" :label="item.value">{{ item.name }}</el-checkbox>
    </el-checkbox-group>
  </el-form-item>
</template>

<script>
var app = new Vue({
  el: '#app',
  data: {
    // 全选变量
    eidAll: false
    // checkbox单项
    searchItem: {
      eid: [],
    },
    // checkbox数据循环
    eidList: [{
      name: '缺数',
      value: 'DZ1'
      // ...
    }]
  },
  methods: {
    // 处理全选
    handleEidAllChange() {
      if (this.eidAll) {
        this.searchItem.eid = [];
        var arr = [];
        for (let i in this.eidList) {
          arr.push(this.eidList[i].value);
        }
        this.searchItem.eid = arr;
      } else {
        this.searchItem.eid = [];
      }
    },
  },
  watch: {
    // 监听checkbox是否全部选择
    "searchItem.eid": function() {
      if (this.searchItem.eid.length == this.eidList.length) {
        this.eidAll = true
      } else {
        this.eidAll = false
      }
    }
  }
});
</script>

<template>
  <div class="table">
    <div class="thead">
      <div class="tr">
        <el-row>
          <el-col v-for="item of tableHeadList" :span="item.col">
            <div class="th">
              {{ item.text }}
            </div>
          </el-col>
        </el-row>
      </div>
    </div>
    <div class="tbody">
      <div class="tr" v-for="(item, index) of tableData">
        <el-row>
          <el-col v-for="bodyItem of tableBodyList" :span="bodyItem.col">
            <div class="td">
              {{ item[bodyItem.field] }}
            </div>
          </el-col>
        </el-row>
      </div>
    </div>
  </div>
</template>

<style>
.table .tbody {
  width: 100%;
  height: 278px;
  overflow-y: scroll;
}
</style>

<script>
var app = new Vue({
  el: '#app',
  data: {
    // th数据循环
    tableHeadList: [{
      // 根据type来v-if th的标题内容，根据需求放文本或checkbox
      type: 'text',
      // 每格占用栅格，element-ui总栅格数是24
      col: '1',
      // th标题
      text: 'ID'
    }],
    // td数据循环
    tableBodyList: [{
      type: 'text',
      col: '1',
      // 接口返回字段
      field: 'id'
    }],
    // 表格数据
    tableData: [...]
  }
});
</script>

<script>
var app = new Vue({
  el: '#app',
  mounted: function() {
    // 监听滚动
    this.handleScrollLoad();
  },
  data: {
    // 加载完全部数据，更换查询条件时请先初始化为false
    loadAll: false,
    // 页码，更换查询条件时请先初始化为1
    offset: 1,
    // 表格数据，更换查询条件时请先清空
    tableData: []
  },
  methods: {
    // 处理滚动加载
    handleScrollLoad() {
      var $this = this

      var nScrollHight = 0;
      var nScrollTop = 0;
      var nDivHight = $(".table .tbody").height();
      $(".table .tbody").scroll(function() {
        if ($this.loadAll) {
          // 全部加载完不进行操作
          return;
        }
        nScrollHight = $(this)[0].scrollHeight;
        nScrollTop = $(this)[0].scrollTop;
        if (nScrollTop + nDivHight >= nScrollHight) {
          // 滑到底部，offset递增
          // 因为我们后端定义的offset其实是page，代表第几页，而不是真正意义上的offset
          // 有需要的人可以转为$this.offset += $this.limit;
          $this.offset += 1;
          $this.searchData()
        }
      });
    },
    // 查询表格数据
    searchData() {
      ...
      var $this = this
      axios.get(str)
      .then(res => {
        if (res.status === 200) {
          // 请求正常，判断是否加载完全部
          if (res.data.rows.length === 0) {
            $this.loadAll = true;
            return;
          }
          for (let i of res.data.rows) {
            $this.tableData.push(i);
          }
        } else {
          // 请求错误
          alert('请求错误，错误码：' + res.status);
        }
      }, e => {
        this.loading = false;
        throw new Error('请求失败：' + e);
      })
    }
  }
});
</script>

<template>
  <div class="echarts_box">
    <charts v-for="(item, index) of echartsData" :item="item"></charts>
  </div>
</template>

<script>
var app = new Vue({
  el: '#app',
  data: {
    // 曲线数据
    echartsData: []
  }
});

/*****************************曲线实例****************************/
Vue.component('charts', {
  props: {
    item: Object
  },
  methods: {
    // 初始化曲线
    initChart() {
      this['echart' + (this.item.id)] = echarts.init(document.getElementById('echart' + this.item.id));
      this.setChart();
    },
    setChart() {
     var $this = this
     let option = {
        ...
      };
      this['echart' + this.item.id].setOption(option);
    }
  },
  mounted() {
    this.initChart();
  },
  watch: {
   item: {
     handler: function () {
      this.setChart();
     },
     deep: true
   }
  },
  template: `<div class="echart_item" :id="'echart'+item.id" style="height:260px;"></div>`
});
</script>