class_config_id, class_name, class_desc, class_type, class_logo, class_content, class_mobile_content, area_id, bx_hours, xx_hours, paper_hours, paper_id, create_time, years, price, apply_start_time, apply_end_time, study_start_time, study_end_time, paper_start_time, paper_end_time, cert_start_time, cert_end_time, need_paper, valid, sign_time, prefix, test_id, target, limit_num