text: -- 数据库spring4
  CREATE DATABASE spring4 CHARSET 'utf8';
  
  
  INSERT INTO t_account (username, `password`, balance) VALUES
  ('Shandy', 'ss123465', 200.00),
  ('Gimmy', 'gg123456', 100.00)
  ;
  
  INSERT INTO t_book (id, sn, bookName, price, stock) VALUES
  ('b1001', '文艺复兴', 36, 6),
  ('b1002', '生命的本质', 88, 2)
  ;
  
  