摘要：
表1 course mysql> select * from course; + + + | id | course_name | + + + | 1 | Java | | 2 | MySQL | | 3 | Python | | 4 | Go | | 5 | C++ | + + + 5 rows 阅读全文
摘要：
表 course mysql> select * from course; + + + | id | course_name | + + + | 1 | Java | | 2 | MySQL | | 3 | Python | | 4 | Go | | 5 | C++ | + + + 5 rows i 阅读全文