python 测试

import pickle

class Bird(object):
    fly = True
    legs = 2
    def __init__(self) :
        print("初始化")
    def callback(self,call):
        call();
    def getfunction(self):
        #闭包
        def ret():
            print('callback running')
        return ret;    
    
summer = Bird()

#序列化
picklestring = pickle.dumps(summer);
print(picklestring)

summer.callback(summer.getfunction())

str = 'abc'
print(str[1:-1])