修复账单明细显示数据错误

application/em/model/EmInvoice.php

@@ -172,7 +172,7 @@ class EmInvoice extends Base
                 $totle['current_numb'] = $inv->useage->current_numb;
                 $totle['repo_numb'] = $totle['current_numb']-$totle['last_numb'];
                 $totle['amount'] = $totle['repo_numb'] * $totle['price'];
-                if($totle['settle_price']){
+                if($inv->em->emr->settle_price != ''){
                     $totle['settle_amount'] = $totle['repo_numb'] * $totle['settle_price'];
                 }
                 else{