如何从python中的另一个方法值中减去一个方法值? [英] how can I subtract a method value from another method value in python?

问题描述

我一直试图从另一个方法值中减去一个方法值，但即使我使用变量，它也会给我一个错误.

I've being trying to subtract a method value from another method value but it gives me a an error even when I use variables.

from tkinter import *
statistics = Tk()
screenwidth = statistics.winfo_screenwidth
windowwidth = statistics.winfo_width
distance = screenwidth - windowwidth
statistics.geometry(+distance+'0')

推荐答案

您正在尝试减去两个函数.您想减去调用函数的结果.试试这个:

You're trying to subtract two functions. You want to subtract the results of calling the functions. Try this:

from Tkinter import *
statistics = Tk()
screenwidth = statistics.winfo_screenwidth()
windowwidth = statistics.winfo_width()
distance = screenwidth - windowwidth
statistics.geometry('+%s+0' % distance)

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