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				@@ -190,15 +190,15 @@ class DeviceManagement(View): 
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				         try: 
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				             if UID or serialNumber or NickName or username:  # 条件查询 
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				                 if UID: 
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				-                    device_info_qs = Device_Info.objects.filter(UID__contains=UID) 
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				+                    device_info_qs = Device_Info.objects.filter(UID__icontains=UID) 
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				                 if serialNumber: 
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				-                    device_info_qs = Device_Info.objects.filter(serial_number__contains=serialNumber) 
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				+                    device_info_qs = Device_Info.objects.filter(serial_number__icontains=serialNumber) 
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				                 if NickName: 
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				-                    device_info_qs = Device_Info.objects.filter(NickName__contains=NickName) 
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				+                    device_info_qs = Device_Info.objects.filter(NickName__icontains=NickName) 
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				                 if username: 
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				-                    device_info_qs = Device_Info.objects.filter(Q(userID__username__contains=username) | 
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				-                                                                Q(userID__userEmail__contains=username) | 
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				-                                                                Q(userID__phone__contains=username)) 
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				+                    device_info_qs = Device_Info.objects.filter(Q(userID__username__icontains=username) | 
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				+                                                                Q(userID__userEmail__icontains=username) | 
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				+                                                                Q(userID__phone__icontains=username)) 
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				                 total = device_info_qs.count() 
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				                 if not total: 
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				                     return response.json(0, {'list': {}, 'total': 0}) 
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