模块中的Setup/UpgradeSchema.php在开发中的版本控制很重要，具体控制一般采取以下做法

<?php
/**
 * Copyright © 2017-2020 秋枫雁飞 (aiweline@qq.com). All rights reserved
 *
 * 欢迎来到Aiweline开发工作室!
 */
namespace Aiweline\Blog\Setup;
use Magento\Framework\Setup\UpgradeSchemaInterface;
use Magento\Framework\Setup\ModuleContextInterface;
use Magento\Framework\Setup\SchemaSetupInterface;
/**
 * Blog schema update
 */
class UpgradeSchema implements UpgradeSchemaInterface
{
    const admin_attribute_FOCUS_ON = 'focus_on';
    const admin_attribute_HEIGHT = 'height';
    const admin_attribute_WEIGHT = 'weight';
    const admin_attribute_CITY = 'city';
    const admin_attribute_OPCCUPATION = 'occupation';
    const admin_attribute_AVATAR = 'avatar';
    const admin_attribute_INFO = 'info';
    /**
     * {@inheritdoc}
     * @SuppressWarnings(PHPMD.ExcessiveMethodLength)
     */
    public function upgrade(SchemaSetupInterface $setup, ModuleContextInterface $context)
    {
        $installer = $setup;
        $setup->startSetup();
        $version = $context->getVersion();
        $connection = $setup->getConnection();
       
       // 此处一般填写比较版本大于当前版本，这样设置有利于开发移植，只是个人习惯，可自行设置
        if (version_compare($version, '3.1.0') < 0) {
            // 添加管理员信息
            $table = $setup->getTable('admin_user');
            $connection->addColumn(
                $table,
                self::admin_attribute_AVATAR,
                [
                    'type' => \Magento\Framework\DB\Ddl\Table::TYPE_TEXT,
                    'nullable' => true,
                    'comment' => '头像'
                ]
            );
            $connection->addColumn(
                $table,
                self::admin_attribute_FOCUS_ON,
                [
                    'type' => \Magento\Framework\DB\Ddl\Table::TYPE_TEXT,
                    'nullable' => true,
                    'comment' => '关注数'
                ]
            );
            $connection->addColumn(
                $table,
                self::admin_attribute_INFO,
                [
                    'type' => \Magento\Framework\DB\Ddl\Table::TYPE_TEXT,
                    'nullable' => true,
                    'comment' => '简介'
                ]
            );
            $connection->addColumn(
                $table,
                self::admin_attribute_CITY,
                [
                    'type' => \Magento\Framework\DB\Ddl\Table::TYPE_TEXT,
                    'nullable' => true,
                    'comment' => '城市'
                ]
            );
            $connection->addColumn(
                $table,
                self::admin_attribute_HEIGHT,
                [
                    'type' => \Magento\Framework\DB\Ddl\Table::TYPE_INTEGER,
                    'nullable' => true,
                    'comment' => '身高'
                ]
            );
            $connection->addColumn(
                $table,
                self::admin_attribute_WEIGHT,
                [
                    'type' => \Magento\Framework\DB\Ddl\Table::TYPE_INTEGER,
                    'nullable' => true,
                    'comment' => '身高'
                ]
            );
            $connection->addColumn(
                $table,
                self::admin_attribute_OPCCUPATION,
                [
                    'type' => \Magento\Framework\DB\Ddl\Table::TYPE_TEXT,
                    'nullable' => true,
                    'comment' => '职位'
                ]
            );
        }
        $setup->endSetup();
    }
}