el-table鼠标经过显示图标，移出隐藏

1、template代码

<el-table:data="listData" @cell-mouse-enter="cellMouseEnter" @cell-mouse-leave="cellMouseLeave">
	<el-table-column label="更新时间" align="center" prop="risExamUpdateTime" >
	<template slot-scope="scope">
	  <span>{{ scope.row.risExamUpdateTime}}
			<i class="el-icon-refresh" v-if="scope.row.hoverFlag" @click="set"></i>
	  </span>
	</template>
	</el-table-column>
</el-table>

2、js代码

//鼠标移入显示图标
cellMouseEnter(row) {
  let Arr = JSON.parse(JSON.stringify(this.listData));
  for (let index = 0; index < Arr.length; index++) {
	const element = Arr[index];
	// 匹配滑过的当前行
	if (element.id === row.id) {
	  element["hoverFlag"] = true;
	} else {
	  element["hoverFlag"] = false;
	}
  }
  this.listData = JSON.parse(JSON.stringify(Arr));
},
//鼠标移出隐藏图标
cellMouseLeave() {
  for (let index = 0; index < this.listData.length; index++) {
	const element = this.listData[index];
	element["hoverFlag"] = false;
  }
},
//点击图标方法
set(){}