rowClick: record => ({
  // 事件
  on: {
   click: () => {
   // 点击改行时要做的事情
   // ......
   console.log(record, 'record')
   }
  }
  })

// text为dataIndex中的值，data为行数据，index为索引值
<template slot="xxx" slot-scope="text,data,index">
{{text|xxxFormat}}
</template>

//table的columns设定，customRender对应着html中的slot值
columns = [
 { title: "列名", dataIndex: "aaa", scopedSlots: { customRender: 'xxx' }},
]

vm.columns = [
 {
  title: "列名", dataIndex: "aaa",
  customRender: (text, row, index) => {
   var obj = {
    children: text,
    attrs: {}
   }
   if (index % 2 == 0) {
    obj.attrs.rowSpan = 2;
   } else {
    obj.attrs.rowSpan = 0;
   }
   return obj;
  }
 },
];

<template slot="xxx" slot-scope="text,data,index">
<a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" @click="clickMe">你点我呀</a>
</template>

customRender: (text, row, index) => {
 var obj = {
  children: <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" click='cityClick(text)'>{text}</a>,
  attrs: {}
 };
 if (index % 2 == 0) {
  obj.attrs.rowSpan = 2;
 } else {
  obj.attrs.rowSpan = 0;
 }
 return obj;
},

customRender: (text, row, index) => {
 var obj = {
  children: <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >{text}</a>,
  attrs: {},
  on: {
   click: () => {
    this.$message.info(text);
   }
  }
 };
 if (index % 2 == 0) {
  obj.attrs.rowSpan = 2;
 } else {
  obj.attrs.rowSpan = 0;
 }
 return obj;
},

var vm = this;
const columns = [
 { title: 'Name', dataIndex: 'name' },
 {
  title: 'City',
  dataIndex: 'city',
  customRender: (text, row, index) => {
   var child = vm.$createElement("a", {
    domProps: {
     innerHTML: text
    },
    on: {
     click: function () {
      vm.cityClick(text);
     }
    }
   });
   var obj = {
    children: child,
    attrs: {},
   };
   if (index % 2 == 0) {
    obj.attrs.rowSpan = 2;
   } else {
    obj.attrs.rowSpan = 0;
   }
   return obj;
  },
 },

var child = vm.$createElement("a", {
 domProps: {
  innerHTML: text
 },
 on: {
  click: function () {
   vm.cityClick(text);
  }
 }
});