SQL多表查询出错（Column 'did' in field list is ambiguous）

select did,count, ( select title from wds_dishes where did=did limit 1 ) as title from wds_shopping_cart inner join wds_dishes on did=did where uid=1 现有两张表： 购物车表wds_shopping_cart 菜品信息表wds_dishes 现想通

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