如何从函数python返回一个int值

2022-01-19 00:00:00 python python-2.7 return return-value int

问题描述

我真的是 Python 新手，在网上找到了我修改过的这个片段，现在我让它打印 x * y 但我希望能够将它作为一个 int 值返回，以便我以后可以再次使用它脚本.

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.

我使用的是 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，邮差

解决方案

要返回一个值，你只需使用 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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