diff --git a/app/Http/Controllers/Manager/OrdersController.php b/app/Http/Controllers/Manager/OrdersController.php
index 4dac8da..1a3d191 100644
--- a/app/Http/Controllers/Manager/OrdersController.php
+++ b/app/Http/Controllers/Manager/OrdersController.php
@@ -1565,11 +1565,11 @@ class OrdersController extends CommonController
             $customer = $order->customer;
             $currentBalance = (float)$customer->balance;
 
-            dd(gettype($totalPaid), gettype($currentBalance), $totalPaid == $currentBalance);
+            dd(gettype($totalPaid), gettype($currentBalance), float_equals($totalPaid, $currentBalance));
 
 
             // 4. 如果支付总额等于用户余额,进行退款处理
-            if ($totalPaid > 0 && floatval($totalPaid) == floatval($currentBalance)) {
+            if ($totalPaid > 0 && float_equals($totalPaid, $currentBalance)) {
                 foreach ($recharges as $recharge) {
                     // 更新用户余额
                     $currentBalance -= $recharge->money;
diff --git a/app/Http/helpers.php b/app/Http/helpers.php
index 4b7d5d2..7fdb0e8 100755
--- a/app/Http/helpers.php
+++ b/app/Http/helpers.php
@@ -592,3 +592,8 @@ function add_work_day($date, $workdays, $return_timestamp = false)
 
     return $return_timestamp ? $date : date("Y-m-d", $date);
 }
+
+function float_equals($a, $b, $epsilon = 0.00001)
+{
+    return abs($a - $b) < $epsilon;
+}