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<p>你在找<a href="http://docs.scipy.org/doc/scipy-0.14.0/reference/generated/scipy.stats.truncnorm.html" rel="noreferrer">stats.truncnorm</a>:</p>
<pre><code>import scipy.stats as stats
a, b = 500, 600
mu, sigma = 550, 30
dist = stats.truncnorm((a - mu) / sigma, (b - mu) / sigma, loc=mu, scale=sigma)
values = dist.rvs(1000)
</code></pre>