mybatis mapper文件sql语句传入hashmap参数

1.怎样在mybatis mapper文件sql语句传入hashmap参数？

答：直接这样写map就可以

<select id="selectTeacher" parameterType="Map" resultType="com.myapp.domain.Teacher">  
    select * from Teacher where c_id=#{id} and sex=#{sex}  
</select>