【小鼓捣】带历史的伪随机数抽签

为了某些事情，临时检索缝合了这么个简陋程序，就当是为以后正式系统学习python做个引子吧

功能命令：
y / n : 是否抽签
show history : 查看历史
clear memory : 清除历史

from collections import deque
import pickle
import random

def main():
    hq=deque([],50)
    hq=pickle.load(open('save2.pkl','rb'))
    while True:
        line = input('是否进行下一次抽签(y/n):')
        if line == 'y' :
            n=random.randint(1,30)
            print('中签：%d' % n)
            hq.append(n)
            pickle.dump(hq,open('save2.pkl','wb'))
            
            hq2=pickle.load(open('save2.pkl','rb'))
            print('<History>:')
            print(list(hq2))
        elif line == 'n' :
            break
        elif line == 'show history':
            hq2=pickle.load(open('save2.pkl','rb'))
            print('<History>:')
            print(list(hq2))
        elif line == 'clear memory':
            hq.clear()
            pickle.dump(hq,open('save2.pkl','wb'))
            
if __name__ == '__main__':
    main()

涉及

1.import 和 from...import

2.random模块

3.pickle模块和pkl文件

4.collection模块中的deque

5.基本输入输出，list，函数调用