hu1258123819的博客

Python中，不考虑可迭代对象，使用不定长参数实现max()函数的功能def mymax(*args): if len(args) >= 2: maxnum = args[0] for x in args: if maxnum < x: maxnum = x return...

AttributeError: type object ‘MongoClient’ has no attribute ‘test’报错后检查，发现建立连接时，因为输入过快，未采用联想，导致MongoClient后面的（）忘记添加，添加后解决该错误。from pymongo import MongoClientclient = MongoClient()...