Merge branch '医护工作量' of http://192.168.18.110:8880/zry/performance into 医护工作量

performance/Performance.Services/ComputeService.cs

@@ -651,8 +651,8 @@ private DeptDataDetails<DetailModuleExtend> MergeDetails(DeptDataDetails details
                     var execute = data.FirstOrDefault(t => t.ItemName.IndexOf("执行") > -1);
                     foreach (var dept in depts.Distinct().OrderBy(t => t))
                     {
-                        var item1 = billing.Items.FirstOrDefault(t => t.ItemName == dept);
-                        var item2 = execute.Items.FirstOrDefault(t => t.ItemName == dept);
+                        var item1 = billing?.Items.FirstOrDefault(t => t.ItemName == dept);
+                        var item2 = execute?.Items.FirstOrDefault(t => t.ItemName == dept);
 
                         items.Add(new DetailModuleExtend
                         {