1.在min.js中引入

//时间戳转化日期格式
Vue.filter('formatDate', function (value) {
  if (!value) return '';
  const date = new Date(value);
  const year = date.getFullYear();
  const month = (date.getMonth() + 1).toString().padStart(2, '0');
  const day = date.getDate().toString().padStart(2, '0');
  const hours = date.getHours().toString().padStart(2, '0');
  const minutes = date.getMinutes().toString().padStart(2, '0');
  const seconds = date.getSeconds().toString().padStart(2, '0');
  return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
});

2.在列表中使用

<el-table-column label="创建时间" align="center" prop="createTime" width="180">
      <template slot-scope="scope">
          <span>{{ scope.row.createTime | formatDate }}</span>
      </template>
</el-table-column>

3.转化为时分秒

// main.js 或者其他入口文件
Vue.filter('formatTimestamp', function(value) {
  if (!value) return '';
  const date = new Date(value);
  const hours = date.getHours();
  const minutes = date.getMinutes();
  const seconds = date.getSeconds();
  return `${hours.toString().padStart(2, '0')}:${minutes.toString().padStart(2, '0')}:${seconds.toString().padStart(2, '0')}`;
});

4.是使用如同2，参数修改为定义的就可以