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                >查詢數據分為單條查詢和多條查詢 > 單條查詢(find($key = '')) > 參數為可選,接收一個int類型的主鍵,如果傳入主鍵則快速查詢并返回相關數據,也可以配合where使用,該方法返回一維數組 示例: ~~~ Db('user')->find(6); //查詢主鍵為6的數據 Db('user')->where(array('name'=>'張三'))->find(); //查詢name等于張三的數據 ~~~ > 多條查詢(select()) > 無參數,可配合where進行條件篩選,該方法返回多維數組 示例: ~~~ Db('user')->where(array('name'=>'張三'))->select(); //查詢name等于張三的相關數據 Db('user')->select(); //查詢user表的全部數據 ~~~
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