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                ### 查詢一條記錄 查詢出sql語句中的第一條數據,可以結合其他鏈接操作查詢。 **函數:** find($id=null,$primaryKey='id') **參數說明:** $id 指定主鍵id,直接查詢一條記錄 **返回值:** 成功:一維數組,其中鍵名對應著sql語句中的字段名或者別名 失敗:false **案例** ~~~ $model=new Model('user'); $model->find(); //等價于 select * from ims_user limit 0,1 $model->find(1); $model->where(['name'=>'張三'])->find(); //等價于 select * from ims_user where name='張三' limit 0,1 ~~~
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