初学者，这个没什么头绪

while True:
    text = input("Please enter the whole or part of a city's name(Quit() to quit):")
    if text != 'Quit()':
        with open('C:/Users/clw31/Desktop/test.txt') as f:
            s = f.read().lower()
            if s.find(text) != -1:
                print('你想输出的内容')
            else:
                print('Not found!')
    else:
        exit()