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				@@ -3,7 +3,7 @@ 
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				 """ 
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				 import json 
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				-import requests 
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				+import aiohttp 
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				 from applications.articleTools import ArticleDBTools 
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				@@ -37,12 +37,18 @@ class AccountServer(object): 
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				                 "symbol": 1, 
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				             }, 
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				             "function": "similarities_cross_avg" 
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				- 
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				         } 
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				         print(json.dumps(body, ensure_ascii=False, indent=4)) 
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				-        response = requests.post(url=url, headers=headers, json=body) 
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				-        print(response.text) 
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				-        return response.json() 
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				+ 
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				+        async with aiohttp.ClientSession() as session: 
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				+            async with session.post(url, headers=headers, json=body) as response: 
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				+                response_text = await response.text() 
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				+                print("结果:\t", response_text) 
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				+                if response_text: 
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				+                    return await response.json() 
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				+                else: 
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				+                    print("Received empty response") 
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				+                    return {} 
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				     def checkParams(self): 
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				         """ 
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