文件地址：

app/services/statistic/OrderStatisticServices.php

一、方法名：getBasic

代碼：

 $data['refund_price'] = $orderService->sum(['paid' => 1, 'pid' => 0, 'is_refund' => 1, 'refund_reason_time' =>  explode('-',$where['time'])], 'refund_price', true);
 $data['refund_count'] = $orderService->count(['paid' => 1, 'pid' => 0, 'is_refund' => 1, 'refund_reason_time' => explode('-',$where['time'])]);
        

如下圖

二、方法名：trend

代碼：

 $refund_price = array_column($storeOrder->getProductTrend($time, $timeType, 'refund_reason_time', 'sum(pay_price)', 'refund'), 'num', 'days');
 $refund_count = array_column($storeOrder->getProductTrend($time, $timeType, 'refund_reason_time', 'count(id)', 'refund'), 'num', 'days');
        

如下圖：

三、文件地址：app/model/order/StoreOrder.php

添加搜索器

 public function searchRefundReasonTimeAttr($query, $value)
    {
        if($value !== ''){
            if(is_array($value)){
                $query->whereBetween('refund_reason_time', [strtotime($value[0]), strtotime($value[1]) + 86400]);
            }else{
                $query->where('refund_reason_time', $value);
            }
        }
    }

如下圖：