擅长:python、mysql、java
<p>现在还不清楚你到底想做什么,但是你的<code>start_timer</code>函数是一个无限繁忙的循环,它会挂起你的GUI,所以我假设这是<em>而不是</em>它!也许你想打电话给<code>Tk.after</code></p>
<pre><code>def start_timer(x=0):
x+=1
Screen.after(1000, lambda x=x: start_timer(x))
# 1000 is the time (in milliseconds) before the callback should be invoked again
# lambda x=x... is the callback itself. It binds start_timer's x to the scope of
# the lambda, then calls start_timer with that x.
itemconfigure(aText,text=x)
</code></pre>
<p>我冒昧地说你希望<code>itemconfigure(aText, text=x)</code>改变标签上的文字?您应该使用:</p>
<pre><code> ...
aText.config(text=x)
</code></pre>