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{php

$sum = $this->ci->db->select_sum('juanzengjine')->get('dr_1_form_jzjz')->row_array();

var_dump($sum);

}

{php

$sum = $this->ci->db->select_sum('juanzengjine')->get('dr_1_form_jzjz')->row_array();

var_dump($sum);

}

{php

$sum = $this->ci->db->select_sum('juanzengjine')->get('dr_1_form_jzjz')->row_array();

var_dump($sum);

}

都對(duì)了一般，輸出部分沒(méi)對(duì)，咋辦了

{php

$sum = $ci->db->select_sum('juanzengjine')->get('dr_1_form_jzjz')->row_array();

var_dump($sum);

}

return出來(lái)

{php

$sum = $this->ci->db->select_sum('juanzengjine')->get('dr_1_form_jzjz')->row_array();

echo $sum['juanzengjine']; //這里這么寫(xiě)才是正確的。

})