我不知道这个语法有什么问题

Question

cur = mysql.connection.cursor()
cur.execute("""Select Qid, Username, Question, StdName, SubName, PostDate, AnsCount from user
            inner join Textual_Question, subjects, standard where
            Textual_Question.Qid = {} and
            user.Uid = Textual_Question.Uid and
            Textual_Question.Subject = subjects.Subkey and
            ​Textual_Question.standard =standard.StdKey""".format(Qid))

（1064，“您的SQL语法有误；请查看与您的MySQL服务器版本相对应的手册，以获取在'}和\ n用户附近使用的正确语法。Uid= Textual_Question.Uid和\ n Textual_Question。 Subje'在第3行“）

Answer 1

我想你错过了右括号。

cur.execute("""Select Qid, Username, Question, StdName, SubName, PostDate, AnsCount from user
                inner join Textual_Question, subjects, standard where
                Textual_Question.Qid = '{0}' and
                user.Uid = Textual_Question.Uid and
                Textual_Question.Subject = subjects.Subkey and
                ​Textual_Question.standard = standard.StdKey""".format(Qid))