擅长:python、mysql、java
<p>我建议你把它变成一个函数。例如:</p>
<pre><code>def spring():
sprwetseq = [] #blank list
ran_yr = np.random.choice(wetspring,1) #choose a random year from the extreme winter variable
sprwetseq += [(ran_yr[0], 2)] #take the random year and the value '2' for spring to sample from
for item in sprwetseq: #item is a tuple with year and season, ***seq is all year and season pairs for the variable
projection.append(extremewet.query("Year == %d and Season == '%d'" % item))
</code></pre>
<p>我不明白把它放到函数里有什么意义。你知道吗</p>
<p>希望这有帮助</p>
<p>KittyKatCoder公司</p>