[英]Can I define an integer in a loop only once?
This is a piece of my code, I run the callback every time I press the ok button on my pop-up so I only want count to be defined once.这是我的一段代码,每次按下弹出窗口上的确定按钮时我都会运行回调,所以我只想定义一次计数。 After that I need to exclude the line "count = 0" from being looped.
之后,我需要将“count = 0”行排除在循环之外。 When I put it outside of the loop, even using global, it gives me an error saying it doesn't know what count is.
当我把它放在循环之外时,即使使用全局,它也会给我一个错误,说它不知道计数是什么。 Any way I could fix this?
有什么办法可以解决这个问题吗? (Here is my code)
(这是我的代码)
def callback():
count = 0
value = int(entry_field.get())
entry_field.delete("0", tk.END)
if value in plusOne:
count += count + 1
print(count)
Thanks谢谢
define it as global?:将其定义为全局?:
count = 0
def callback():
global count
value = int(entry_field.get())
entry_field.delete("0", tk.END)
if value in plusOne:
count += count + 1
print(count)
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