Question

from tkinter import *
import random
import time
tk = Tk()
tk.title("Pong")
tk.resizable(0,0)
tk.wm_attributes("-topmost", 1)
canvas = Canvas(tk, width=500, height=400, bd=0, highlightthickness=0)
canvas.pack()
tk.update()
class Ball:
    def _init_(self, canvas, color):
        self.canvas = canvas
        self.id = canvas.create_oval()
        self.canvas.move(self.id, 245, 100)

    def draw(self):
        pass
ball = Ball(canvas, 'red')

当我运行代码时，它会返回错误：

TypeError: object() takes no parameters

即使定义了对象的参数。

Answer 1

正如其他人指出的那样，你需要在pod 'SwiftyXMLParser', :git => 'https://github.com/yahoojapan/SwiftyXMLParser.git', :branch => "swift2.3"中使用双下划线，你错过了__init__电话的论据：

create_oval

对象有参数，但表示没有

1 个答案: