擅长:python、mysql、java
<p>这里有一个工作示例:</p>
<pre><code>import random
import numpy
from matplotlib import pyplot
x = [random.gauss(3,1) for _ in range(400)]
y = [random.gauss(4,2) for _ in range(400)]
bins = numpy.linspace(-10, 10, 100)
pyplot.hist(x, bins, alpha=0.5, label='x')
pyplot.hist(y, bins, alpha=0.5, label='y')
pyplot.legend(loc='upper right')
pyplot.show()
</code></pre>
<p><img src="https://i.stack.imgur.com/acUlv.png" alt="enter image description here"/></p>