擅长:python、mysql、java
<p>if条件<code>if st.sidebar.button("Identify"):</code>失败,因此<code>selectedimage</code>未被声明,因此您在<code>selectedimage = np.array(selectedimage) / 255.0</code>行中面临错误</p>
<p>如果<code>if condition</code>正确,则检查<code>st.sidebar.button("Identify")</code>的值。它将是<code>False</code></p>