<resultMap type="cn.kgc.tangcco.hsl.pojo.Student1" id="ss">
<id property="sid" column="sid"/>
<result property="sage" column="sage" />
<result property="sname" column="sname"/>
<result property="gender" column="gender"/>
<result property="xuefen" column="xuefen"/>
<result property="pwd" column="pwd"/>
<result property="team" column="team"/>
<result property="role" column="role"/>
<result property="status" column="status"/>
<association property="score" javaType="cn.kgc.tangcco.hsl.pojo.Score">
<result property="bishi" column="bishi"/>
<result property="jishi" column="jishi"/>
<result property="zong" column="zong"/>
</association>
</resultMap>
<!--不写s.sid时只返回第一条记录-->
<select id="selectall" resultMap="ss">
select s.sid,s.sname,s.sage,s.team,s.role,ss.zong from students_copy s LEFT join score ss on s.sid = ss.sid
</select>