欠款管理

biz-ghs/custom/classes/CustomClass.php

@@ -189,7 +189,7 @@ class CustomClass extends BaseClass
             util::fail('没有main信息');
         }
         $debt = $main->debt ?? 0;
-        $remain = bcsub($debt, $amount, 2);
+        $remain = bcadd($debt, $amount, 2);
         $main->debt = $remain;
         $main->save();