如何从函数python返回int值 [英] How to return an int value from a function python

问题描述

我真的是Python的新手，并在网上找到了我修改过的代码段，现在我可以将其打印为x * y，但我希望能够将其作为int值返回，以便稍后在以后再次使用它.脚本.

I am really new to Python and found this snippet online that I've modified, right now I have it printing x * y but I want to be able to return it as a int value so I can use it again later in the script.

我正在使用Python 2.7.6.

I'm using Python 2.7.6.

def show_xy(event):
    xm, ym = event.x, event.y
    x3 = xm * ym
    print x3
root = tk.Tk()
frame = tk.Frame(root, bg = 'yellow', 
                width = 300, height = 200)
frame.bind("<Motion>", showxy)
frame.pack()

root.mainloop()

亲切的问候，Postie

Kind regards, Postie

推荐答案

要返回值，只需使用 return 而不是 print :

To return a value, you simply use return instead of print:

def showxy(event):
    xm, ym = event.x, event.y
    x3 = xm*ym
    return x3

简化示例:

def print_val(a):
    print a

>>> print_val(5)
5

def return_val(a):
    return a

>>> result = return_val(8)
>>> print result
8

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