摘要:
DROP TRIGGER IF EXISTS account; delimiter $$ CREATE TRIGGER account BEFORE INSERT ON card_open FOR EACH ROW BEGIN SELECT max(account) INTO @my_auto_in 阅读全文
摘要:
spring 创建三种创建对象的方法 User类 x public class User { private String name; private Integer age; private TestObj testObj; public TestObj getTestObj(){ return 阅读全文