擅长:python、mysql、java
<p>你能做到的</p>
<pre><code>RNA_list = ['C', 'G', 'A', 'U']
RNA_dictionary = {'A': 1, 'U': 2, 'C': 3, 'G': 4}
RNA_integers = []
for i in RNA_list:
if i in RNA_dictionary:
RNA_integers.append (RNA_dictionary[i])
print RNA_integers
</code></pre>
<p><strong>输出</strong></p>
^{pr2}$
<p>或者使用<a href="http://docs.python.org/2/tutorial/datastructures.html#list-comprehensions" rel="noreferrer">list comprehension</a></p>
<pre><code>RNA_integers = [RNA_dictionary[i] for i in RNA_list if i in RNA_dictionary]
</code></pre>