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WPF水流动画(使用转换器模拟逻辑门控制水流信号)

minute_5 2024-05-25 阅读 5

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rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or 
its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current 
input statement.

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| hwgk_db            |
| mysql              |
| zrcx_db            |
+--------------------+
4 rows in set (0.00 sec)

mysql> user zrcx_db;
ERROR 1064 (42000): You have an error in your SQL syntax; 
check the manual that
corresponds to your MySQL server version for the right syntax 
to use near 'user
zrcx_db' at line 1
mysql> use zrcx_db;
Database changed
mysql> selet * from tb_test;
ERROR 1064 (42000): You have an error in your SQL syntax; 
check the manual that
corresponds to your MySQL server version for the right syntax 
to use near 'selet
 * from tb_test' at line 1
mysql> select * from tb_test;
Empty set (0.04 sec)

mysql> insert into tb_test(id,firstname,lastname,email,phone) 
values(id,'lining'
,'aa','aa@qq.com','123353');
Query OK, 1 row affected (0.00 sec)

mysql> select * from tb_test;
+----+-----------+----------+-----------+--------+
| id | firstname | lastname | email     | phone  |
+----+-----------+----------+-----------+--------+
|  1 | lining    | aa       | aa@qq.com | 123353 |
+----+-----------+----------+-----------+--------+
1 row in set (0.00 sec)

mysql> insert into tb_test(id,firstname,lastname,email,phone) 
values(id,'lining'
,'aa','aa@qq.com','123353');
Query OK, 1 row affected (0.01 sec)

mysql> select * from tb_test;
+----+-----------+----------+-----------+--------+
| id | firstname | lastname | email     | phone  |
+----+-----------+----------+-----------+--------+
|  1 | lining    | aa       | aa@qq.com | 123353 |
|  2 | lining    | aa       | aa@qq.com | 123353 |
+----+-----------+----------+-----------+--------+
2 rows in set (0.00 sec)

mysql> delete from tb_test where id=2;
Query OK, 1 row affected (0.10 sec)

mysql> select * from tb_test;
+----+-----------+----------+-----------+--------+
| id | firstname | lastname | email     | phone  |
+----+-----------+----------+-----------+--------+
|  1 | lining    | aa       | aa@qq.com | 123353 |
+----+-----------+----------+-----------+--------+
1 row in set (0.00 sec)
 

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