Question

我正在尝试在python中创建一个带编号的菜单，我遇到一条错误消息，指出“解析时出现意外的EOF”，我不确定该怎么办，有人可以帮忙吗？

menu = 0
menu = int(input("pick an option:\n"
                 "1 print all records in system:\n"
                 "2 print employee details:\n"
                 "3 print total salary:\n"
                 "4 print average salary:\n"
                 "5 add new employee to system:\n"
                  "6 staff positions:\n"
                  "7 salarys over £30,000:\n"
                 "8 exit:\n\n"
                 "Option selected: ")

Answer 1

您最后忘了一个括号：

menu = 0
menu = int(input("""\
pick an option:
1 print all records in system:
2 print employee details:
3 print total salary:
4 print average salary:
5 add new employee to system:
6 staff positions:
7 salarys over £30,000:
8 exit:
Option selected: """)) # here

这将起作用。

Answer 2

这是菜单渲染的另一个更清晰灵活的版本。在下面的版本中，如果用户输入非数字字符，则不会出现ValueError。您可以随意更改和扩展您不喜欢的任何内容。

# Use OrderedDict or a list, if you're compiling on Python 3.5 or older
menu_items = {
    "1": "Print all records in system:",
    "2": "Print employee details:",
    "3": "Print total salary:",
    "4": "Print average salary:",
    "5": "Add new employee to system:",
    "6": "Staff positions:",
    "7": "Salarys over £30,000:",
    "8": "Exit:"
}

option = None

print("Pick an option\n")

while True:
    print('\n'.join(["{} {}".format(idx, menu_item)
                     for idx, menu_item in menu_items.items()]))

    option = input("\nOption selected: ")

    if option not in menu_items:
        print("Invalid option. Try Again")
    else:
        break

print("Do something with option {}".format(option))  # now you can even cast option to int without any error

我需要帮助在python中创建菜单

2 个答案: