擅长:python、mysql、java
<p>这个班轮行得通</p>
<pre class="lang-py prettyprint-override"><code>sample_array = np.array([10,11,12,13,21,200,1,2])
# oneliner
print(sum(np.cumsum(arr>threshold)==0))
</code></pre>
<p><code>np.cumsum(sample_array>threshold)==0)</code>将具有值0,直到元素大于阈值</p>