thinkinjava1的博客

#--coding:utf-8--#1、字典dict = {‘name’: ‘Zara’, ‘age’: 7, ‘class’: ‘First’}#字典转为字符串，返回：<type ‘str’> {‘age’: 7, ‘name’: ‘Zara’, ‘class’: ‘First’}print type(str(dict)), str(dict)#字典可以转为元组，返回：(‘...

1.pip show pip 查看pip版本2.python -m pip install --upgrade pip 升级pip3.pip install +包名 开心安装包