标注的那句话要怎么写
Dao代码
public void UpdateSQuestion(Schoice sc) {
try {
Class.forName("com.mysql.jdbc.Driver");
String url = "jdbc:mysql://127.0.0.1:3306/appoi";
Connection con = DriverManager.getConnection(url, "root", "123348");
String sql = "update s_choice set problem=?,optionA =?,optionB=?,optionC=?,optionD=?,answer=?,jointime=? where id=?";
PreparedStatement cmd = con.prepareStatement(sql);
cmd.setString(1, sc.getProblem());
cmd.setString(2, sc.getOptionA());
cmd.setString(3, sc.getOptionB());
cmd.setString(4, sc.getOptionC());
cmd.setString(5, sc.getOptionD());
cmd.setString(6, sc.getAnswer());
# cmd.setString(7,sc.getJointime());
cmd.setInt(8, sc.getId());
cmd.executeUpdate();
con.close();
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println("修改单选题信息");
}