类型错误:'>''method' 和 'int' 的实例之间不支持,但在这种情况下,'method' 是一个数字 [英] TypeError: '>' not supported between instances of 'method' and 'int', but in this case the 'method' is a number
本文介绍了类型错误:'>''method' 和 'int' 的实例之间不支持,但在这种情况下,'method' 是一个数字的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我刚开始使用 python 创建视频游戏,但出现此错误:
I'm new to creating videogames with python and I got this error:
Traceback (most recent call last):
File "/home/barbieri/pong.py", line 75, in <module>
ball.setx(ball.xcor() + ball.dx) # make the ball move (xcor = current cordinate)
File "/usr/lib/python3.7/turtle.py", line 1808, in setx
self._goto(Vec2D(x, self._position[1]))
File "/usr/lib/python3.7/turtle.py", line 3158, in _goto
screen._pointlist(self.currentLineItem),
File "/usr/lib/python3.7/turtle.py", line 755, in _pointlist
cl = self.cv.coords(item)
File "<string>", line 1, in coords
File "/usr/lib/python3.7/tkinter/__init__.py", line 2469, in coords
self.tk.call((self._w, 'coords') + args))]
_tkinter.TclError: invalid command name ".!canvas"
对于这些代码行:
while True:
wn.update()
# Move the ball
ball.setx(ball.xcor() + ball.dx)
ball.sety(ball.ycor() + ball.dy)
# Borders
if ball.ycor() > 290:
ball.sety(290)
ball.dy *= -1
有人可以帮我吗?Python 版本:python 3.7.3.Linux 操作系统.
Can somebody help me? Python version: python 3.7.3. Linux operating system.
我正在学习使用 python 3.6 的教程,这可能是原因还是相同?
I am following a tutorial that uses python 3.6, that could be the cause or it's the same?
推荐答案
你确定你的代码是这样的
Are you sure your code looks like this
if ball.ycor() > 290:
而不是这样
if ball.ycor > 290:
因为如果 ycor 是这样定义的
because if ycor is defined like this
class ball():
def ycor(self):
...
然后你尝试像这样访问它
and you try to access it like this
if ball.ycor > 290:
然后你会得到这个错误
'>' not supported between instances of 'method' and 'int'
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