修正benchmark bug

reports/benchmark.py

@@ -47,16 +47,17 @@ class BenchmarkAlligamReportor(RoboReportor):
             response = requests.get(f'http://jdcprod.thiztech.com/api/datas/asset-value?{urlencode(params)}').json()
             if not response['success']:
                 raise Exception(f'''request jdc alligam failed: {response['status']}''')
-            rb.batch_insert([{
-                'date': dt.fromtimestamp(x['date'] / 1000),
-                'module': self.module_name,
-                'risk': self.risk,
-                'nav': x['calibrateValue'],
-                'remarks': json.dumps({
-                    'av': x['originValue'],
-                    'div': x['dividend'] if 'dividend' in x else 0
-                }, ensure_ascii=False)
-            } for x in response['body']['content']])
+            if response['body']['content']:
+                rb.batch_insert([{
+                    'date': dt.fromtimestamp(x['date'] / 1000),
+                    'module': self.module_name,
+                    'risk': self.risk,
+                    'nav': x['calibrateValue'],
+                    'remarks': json.dumps({
+                        'av': x['originValue'],
+                        'div': x['dividend'] if 'dividend' in x else 0
+                    }, ensure_ascii=False)
+                } for x in response['body']['content']])
             if response['body']['last']:
                 break
             else: