API 

el-table 设置属性 show-overflow-tooltip 为 true

 代码

<template>
    <div>
        <el-table :data="tableData" style="width: 100%" height="250">
            <el-table-column fixed prop="date" label="日期" ></el-table-column>
            <el-table-column prop="name" label="姓名" ></el-table-column>
            <el-table-column prop="province" label="省份" ></el-table-column>
            <el-table-column prop="city" label="市区" ></el-table-column>
            <el-table-column prop="address" label="地址" show-overflow-tooltip></el-table-column>
            <el-table-column prop="zip" label="邮编" ></el-table-column>
        </el-table>
    </div>
</template>
<script>
export default {
    data() {
        return {
            tableData: [
                {
                    date: '2016-05-03',
                    name: '王小虎',
                    province: '上海',
                    city: '普陀区',
                    address: '上海市普陀区金沙江路 1518 弄',
                    zip: 200333
                }, {
                    date: '2016-05-02',
                    name: '王小虎',
                    province: '上海',
                    city: '普陀区',
                    address: '上海市普陀区金沙江路 1518 弄',
                    zip: 200333
                }, {
                    date: '2016-05-04',
                    name: '王小虎',
                    province: '上海',
                    city: '普陀区',
                    address: '上海市普陀区金沙江路 1518 弄',
                    zip: 200333
                }, {
                    date: '2016-05-01',
                    name: '王小虎',
                    province: '上海',
                    city: '普陀区',
                    address: '上海市普陀区金沙江路 1518 弄',
                    zip: 200333
                }, {
                    date: '2016-05-08',
                    name: '王小虎',
                    province: '上海',
                    city: '普陀区',
                    address: '上海市普陀区金沙江路 1518 弄',
                    zip: 200333
                }, {
                    date: '2016-05-06',
                    name: '王小虎',
                    province: '上海',
                    city: '普陀区',
                    address: '上海市普陀区金沙江路 1518 弄',
                    zip: 200333
                }, {
                    date: '2016-05-07',
                    name: '王小虎',
                    province: '上海',
                    city: '普陀区',
                    address: '上海市普陀区金沙江路 1518 弄',
                    zip: 200333
                }
            ]
        }
    }
}
</script>

知识点

1.  代码第 8 行，show-overflow-tooltip 设为 true；

2. 代码第 3 行，注意这里 width: 100%。外框够宽就不会有隐藏。

效果