面向对象补充,进程,数据共享,锁,进程池,模块(requests,bs4(beautifulsoup)),协程

一丶面向对象补充

"""
class Foo(object):
    def __init__(self):
        self.info = {}

    def __setitem__(self, key, value):
        self.info[key] = value

    def __getitem__(self, item):
        return self.info.get(item)


obj = Foo()
obj['x'] = 123
print(obj['x'])
"""
from flask import globals
class Foo(object):

    def __init__(self):
        object.__setattr__(self, 'info', {}) # 在对象中设置值的本质

    def __setattr__(self, key, value):
        self.info[key] = value

    def __getattr__(self, item):
        print(item)
        return self.info[item]

obj = Foo()
obj.name = 'alex'
print(obj.name)
v = []
for i in range(10000):
    v.append(i)

print(v)

小补充...