擅长:python、mysql、java
<p>您可以使用split方法来执行此操作:</p>
<pre><code>txt = """car trans + 1,4,6,8
plane trans + 3,5,7,9,4,3
train trans - 2,4,6,7
bus trans - 1,3,4,5,6,7,8"""
lines = txt.split("\n")
for line in lines:
vehicle,vehicle_type,action,numbers = line.split('\t')
numbers_list = numbers.split(',')
</code></pre>
<p>您只能通过以下方式从列表中获取偶数:</p>
<pre><code>even_locations_list = numbers_list[1::2] #starting from position 1 (the second object) and jumping 2 steps at a time)
</code></pre>