擅长:python、mysql、java
<p>这是我在这种情况下使用的模式:</p>
<pre><code>label_o = 'Circle'
label_s = 'Square'
for i in thick.index:
if thick['Interest'][i] == 1:
plt.scatter(thick['NiThickness'][i], thick['GdThickness'][i], marker=o', color='b', label=label_o)
label_o = None
else:
plt.scatter(thick['NiThickness'][i], thick['GdThickness'][i], marker='s', color='r', label=label_s)
label_s = None
</code></pre>
<p>这也很好地解决了只有一个类别存在的情况。你知道吗</p>