python建立访客记录

写一个程序，提示访客输入名字，并给出一个招呼语，然后将访客名字写入guest.txt文件中作为备份

print("Enter 'quit' when you are finished\n")filename = 'guest.txt'while True:    name = input('Please enter your name>>>')    if name == 'quit':        break    else:        with open(filename,'a') as file:            file.write(name.title()+'\n')#将访客写入的名字改为首字母大写        print('Welcome,'+name.title())        dicision = input('Do you want to continue? y/n>>>')        if dicision == 'n':            break

输入quit可以结束，或者输入n也可以结束
运行如：

Enter 'quit' when you are finishedPlease enter your name>>>heibanWelcome,HeibanDo you want to continue? y/n>>>yPlease enter your name>>>xiangpicaWelcome,XiangpicaDo you want to continue? y/n>>>yPlease enter your name>>>fenbiWelcome,FenbiDo you want to continue? y/n>>>n>>> 

guest.txt文件为：

HeibanXiangpicaFenbi