修改优化方案为列表

app/service/portfolio_diagnose.py

@@ -1082,6 +1082,7 @@ class PortfolioDiagnose(object):
                 sentence.append("年化收益率提升{:.2f}个点".format((new_return_ratio_year - old_return_ratio_year) * 100))
 
             whole_sentence = "，".join(sentence).lstrip("，") + "。"
+            whole_sentence = [whole_sentence]
             return suggestions_result, suggestions_result_asset, return_compare_result, indicator_compare, whole_sentence
         except Exception as e:
             repr(e)