String updatesql="update book set bookno=?,bookname=?,bookauthor=?,bookpress=?,booknum=? where bookno=?";
这句话出现了以下问题
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 '?,bookname=?,bookauthor=?,bookpress=?,booknum=? where bookno=?' at line 1
谢谢啊,现在问题解决了