python f""格式化字符串的时候报错 f-string: expressions nested too deeply tmp = "黄昏" s1 = f'{"music.search.SearchCgiService": {"method": "DoSearchForQQMusicDesktop","module": "music.search.SearchCgiService","param": {"num_per_page": 40,"page_num": 1,"query": {tmp},"search_type": 0}}}'