西安电子科技大学网络与继续教育学院

proceeds of c values are equal and equal to the design value, then the vertical installation accurate. For example a, b, and c valueswhile on horizontal vertical errors for measurement, General in iron angle code bit at measurement level points grid errors, specific method is from baseline to methyl vertical box center line distance for a,, to b vertical box distance for b, list can measuredР表4-5 订单信息主表Р字段名Р数据类型Р长度Р是否主键Р描述РOrderIDРBigintР8Р是Р订单编号РbnumberРsmallint?Р2РР品种数Рusername?РVarcharР15РР用户名РTruenameРvarchar?Р15РР真实姓名РaddressРVarcharР100РР联系地址Рpostcode?Рvarchar?Р10РР邮政编码РtelРVarcharР20РР电话РpayРVarcharР20РР付款方式РcarryРVarcharР20РР运送方式РrebateРfloatР8РР折扣РOrderDateРsmalldatetimeР4РР订货日期РenforceРintР4РР是否执行РbzРvarchar?Р200РР备注РР（6）tb_member（会员信息表）Р会员信息表主要用来存储所注册的会员的信息。表tb_member的结构如表4-6所示。