修复合并账单 缴费金额显示的bug

application/em/controller/Invoice.php

@@ -269,7 +269,7 @@ class Invoice extends Base
         $settle_amount = 0;
         foreach ($data as $v){
             $v->settle_amount = $v->settle_amount ?:0;
-            $v->payment_amount = is_numeric($v->payment_amount) ?: (float)$v->payment_amount;
+            $v->payment_amount = is_numeric($v->payment_amount) ? $v->payment_amount : (float)$v->payment_amount;
             $payment_amount += $v->payment_amount;
             $settle_amount += $v->settle_amount;
         }