TypeError：不可排序的类型：int() > Guessing_game()

Question

我正在研究python并尝试制作一个与GUI连接的猜数程序。 但是，有错误，我不知道如何修复，所以请帮助我。

我的代码是

from tkinter import*
import random

class Application(Frame):

    def __init__(self, master):
        super(Application, self).__init__(master)
        self.grid()
        self.widgets()
        self.answer = Guessing_game(starting_number = 0,
                                    ending_number = 100)

    def widgets(self):

        Label(self,
              text = "Hello welcome to new_version of the Guess My Number!"
              ).grid(row = 0, column = 0, sticky = W)

        Label(self,
              text = "Guess the number(0-100):"
              ).grid(row = 1, column = 0, sticky = W)

        self.user_answer = Entry(self)
        self.user_answer.grid(row = 1, column = 1, sticky = W)

        Button(self,
               text = "submit",
               command = self.submit
               ).grid(row = 3, column = 0, sticky = W)

        self.txt = Text(self, width = 50, height = 20, wrap = WORD)
        self.txt.grid(row = 4, column = 0, columnspan = 4, sticky = W)

    def submit(self):

        user_answer = self.user_answer.get()    

        if user_answer != None:
           int(user_answer) 
        if int(user_answer) not in range(101):
            self.txt.delete(0.0, END)
            self.txt.insert(0.0, "Your guess is not in proper range")
        elif int(user_answer) > self.answer:
            self.txt.delete(0.0, END)
            self.txt.insert(0.0, "Your guess is higher than the answer")
        elif int(user_answer) < self.answer:
            self.txt.delete(0.0, END)
            self.txt.insert(0.0, "Your guess is lower than the answer")
        else:
            self.txt.delete(0.0, END)
            self.txt.insert(0.0, "Your guess is right! the number is", self.answer)

class Guessing_game(object):
    def __init__(self, starting_number, ending_number):
        self.answer = random.randint(starting_number,ending_number)

    def __str__(self):
        return self.answer
#main
root = Tk()
app = Application(root)
root.mainloop()

错误是

Tkinter 回调 Traceback 中的异常（最近一次调用最后一次）：
调用中的文件“C:\Python31\lib\tkinter__init__.py”，第 1399 行 return self.func(*args) File "D:/Python/practice/Guess_My_Number(GUI).py", line 43, in submit elif int(user_answer) > self.answer: TypeError: unorderable types: int() > Guessing_game()

如何将 Guessing game() 对象转换为 int()，以便比较 对象和int？

Answer 1

它准确地告诉您错误是什么，您正在将对象与整数进行比较。相反，您应该引用对象内的变量

if int(user_answer) > self.answer.answer:
    ...

可能需要考虑修复此名称。或者考虑一下您是否甚至需要将其作为一堂课。此外，您的 __str__ 方法不正确，返回值必须是字符串，而您尝试返回整数（如果您尝试 print(Guessing_game(0, 100))，则可以看到这一点

以下内容也不完全符合您的想法

if user_answer != None:
    int(user_answer)

user_answer 将始终是一个字符串，因为您从 Entry 小部件获取值。

你可能想要

# Check if the string is a number
if not user_answer.isdigit():
    # Some error message
    return # prevent trying anything else

您还需要重新分配 int(user_answer) 的结果，因为它不会修改您的变量，它基本上什么都不做（除非遇到错误）

user_answer = int(user_answer)