摘要：
age name sex ['age', 'name', 'sex'] [35, 'test', 'nan'] user_info.pop("sex") del user_info["age"] 字典可以删除键值 阅读全文
摘要：
1、partition(self, sep): # real signature unknown; restored from __doc__ python ['python', 'java'] ['php'] java java ['python', 'php'] 8、remove(self, v 阅读全文