🐞 fix(谷歌学术搜索): 包装search.results()为空可能造成的报错

https://github.com/binary-husky/gpt_academic/issues/423

crazy_functions/谷歌检索小助手.py

@@ -36,6 +36,7 @@ def get_meta_information(url, chatbot, history):
             max_results = 1,
             sort_by = arxiv.SortCriterion.Relevance,
         )
+        try:
             paper = next(search.results())
             if string_similar(title, paper.title) > 0.90: # same paper
                 abstract = paper.summary.replace('\n', ' ')
@@ -44,6 +45,9 @@ def get_meta_information(url, chatbot, history):
                 abstract = abstract
                 is_paper_in_arxiv = False
             paper = next(search.results())
+        except:
+            abstract = abstract
+            is_paper_in_arxiv = False
         print(title)
         print(author)
         print(citation)