Mysql 遇到神奇的“本次本客户端效现象”，数据库并未被改变 + 神奇“卡顿现象”

#事务
#创建事务
drop table if exists `Acount`;
CREATE TABLE `Acount`(
       `id` int PRIMARY KEY AUTO_INCREMENT,
    `name` varchar(50),
    `money` float
)ENGINE=InnoDB, charSet=utf8mb4;
#添加数据
INSERT INTO `Acount` VALUES (default, 'huanglaoban', 100);
INSERT INTO `Acount` VALUES (default, 'dangdang', 100);
select * from `Acount`;
#模拟转账场景：
set sql_safe_updates=0; /*取消安全模式*/
 #关闭自动提交事务
set autocommit=0;
 show variables like 'autocommit';
#举例转账事务
start transaction;
    update `Acount` set `money` = `money` - 10 where `name` = 'huanglaoban';
    update `Acount` set `money` = `money` + 10 where `name` = 'dangdang';
commit;
set sql_safe_updates=1;/*设置回安全模式*/
  #设置自动提交事务
set autocommit=1;
select * from `Acount`;

set sql_safe_updates=0; /*取消安全模式*/
 #关闭自动提交事务 
set autocommit=0;
update `Acount` set `money` = `money` - 10 where `name` = 'huanglaoban';
select * from `Acount`;