擅长:python、mysql、java
<p>经过反复试验才弄明白</p>
<pre><code> previousPageB = tk.Button(self, font = BASIC_FONT, text = "< ", command = lambda: controller.show_frame(LoginPage))
previousPageB.pack(anchor = "w", side = "bottom")
</code></pre>
<p>这将导致按钮位于左下角:
<a href="https://i.stack.imgur.com/KAI9J.png" rel="nofollow noreferrer">enter image description here</a></p>
<p>如果您执行以下操作,它也会起作用:</p>
<pre><code>previousPageB = tk.Button(self, font = BASIC_FONT, text = "< ", command = lambda: controller.show_frame(LoginPage))
previousPageB.pack(anchor = "s", side = "left")
</code></pre>