diff --git a/app/Customer.php b/app/Customer.php
index bf54bd1..c6ba5dd 100644
--- a/app/Customer.php
+++ b/app/Customer.php
@@ -3,6 +3,7 @@
 namespace App;
 
 use App\Models\Balance;
+use App\Models\Orders;
 use App\Models\Patient;
 use App\Models\Recharge;
 use Illuminate\Foundation\Auth\User as Authenticatable;
@@ -53,7 +54,7 @@ class Customer extends Authenticatable implements JWTSubject
 {
     use Notifiable;
 
-    CONST GUARD_NAME = "customer";
+    const GUARD_NAME = "customer";
 
     public function guardName()
     {
@@ -130,4 +131,9 @@ class Customer extends Authenticatable implements JWTSubject
         return $this->hasMany(Recharge::class, "customer_id")->whereNotNull("paid_at");
     }
 
+    public function orders()
+    {
+        return $this->hasMany(Orders::class, "customer_id");
+    }
+
 }
diff --git a/app/Http/Controllers/Admin/StatisticsController.php b/app/Http/Controllers/Admin/StatisticsController.php
index 7bdaae5..e75703e 100755
--- a/app/Http/Controllers/Admin/StatisticsController.php
+++ b/app/Http/Controllers/Admin/StatisticsController.php
@@ -248,12 +248,11 @@ class StatisticsController extends CommonController
             return $this->error($this->noProjects);
         }
         $project_id = request()->project_id ?? $projects->first()->id;
-
         $before_date = $request->before_date ?: date("Y-m-d");
         $before_datetime = strtotime($before_date . " 23:59:59");
 
         DB::enableQueryLog();
-        //todo:子订单的数量增加，用更省查询时间的方式获取项目相关数据
+
         $customers = (new Customer())
             ->whereNull("deleted_at")
             ->with([
@@ -264,16 +263,18 @@ class StatisticsController extends CommonController
                     $query->whereRaw("UNIX_TIMESTAMP(`created_at`) <= {$before_datetime}")->orderBy("id", "desc");
                 }
             ])
-            ->whereHas("balances", function ($query) use ($before_datetime, $project_id) {
+            ->whereHas("oneBalance", function ($query) use ($before_datetime) {
+                $query->whereRaw("UNIX_TIMESTAMP(`created_at`) <= {$before_datetime}")->where("balance", ">", 0)->orderBy("id", "desc");
+            })
+            ->whereHas("orders", function ($query) use ($before_datetime, $project_id) {
                 $query
                     ->whereRaw("UNIX_TIMESTAMP(`created_at`) <= {$before_datetime}")
-                    ->whereHas("order", function ($query) use ($project_id) {
-                        $query->where("project_id", $project_id);
-                    });
+                    ->where("project_id", $project_id);
             })
             ->get();
 
-        return view($this->bladePath . ".customer-balance", compact("customers", "before_datetime"));
+        $laravel_duration = microtime(true) - LARAVEL_START;
+        return view($this->bladePath . ".customer-balance", compact("customers", "before_datetime", "project_id", "laravel_duration"));
     }
 
     public function fixMonthLastDayCheckout(Request $request)
diff --git a/resources/views/admin/statistics/customer-balance.blade.php b/resources/views/admin/statistics/customer-balance.blade.php
index 4d66d8d..86a2ec1 100755
--- a/resources/views/admin/statistics/customer-balance.blade.php
+++ b/resources/views/admin/statistics/customer-balance.blade.php
@@ -20,7 +20,16 @@
             <div class="card">
                 <div class="card-body" style="overflow: auto">
                     <div class="mb-3">
+
                         <form class="form-inline">
+                            <select class="form-control mr-1" name="project_id"
+                                    onchange="$(this).closest('form').submit()">
+                                @foreach($projects as $pp)
+                                    <option
+                                        value="{{$pp->id}}" @if($pp->id == $project_id) {{ "selected" }}@endif>{{$pp->name}}</option>
+                                @endforeach
+                            </select>
+
                             <label class="control-label mr-1">截止</label><input
                                 value="{{ date("Y-m-d",$before_datetime) }}" class="form-control" name="before_date"
                                 data-plugin="date-picker">