简单记事本逻辑

eventlist=[]

def genEvent():
    'return event'
    event={}
    keys = ['时间','地点','事件']
    for key in keys:
        msg = input(f'enter {key}')
        event.setdefault(key,msg)
    return event
def addEventToMemo():
        c = genEvent()
        eventlist.append(c)
        listEvent()

def listEvent():
        for item in eventlist:
            print(item)
def pointfunc():
        print('input support a/l')
def startRun():
    opt_dict={'a':addEventToMemo,'l':listEvent}
    tips = {'a:': 'Add event','l:':'List Event'}
    for k,v in tips.items():
        print(k,v)
    while True:
        cmd = input('Enter Cmd a/l/q:')
        if cmd == 'q':
            print('exit')
            break
        func= opt_dict.get(cmd,pointfunc) #get返回结果None 赋值给函数
        func()

if __name__ == '__main__':
    startRun()