擅长:python、mysql、java
<pre><code>>>> text = """Fred 179.0 Luna 0.1654
... Layla 131 Mars 0.376
... Pat 145.2 Neptune 1.14
... END 0 0 0"""
>>> for line in text.splitlines():
... a = line.split()
... for items in a:
... print items[1], items[3]
...
r d
7 .
u a
. 6
a l
3
Traceback (most recent call last):
File "<stdin>", line 4, in <module>
IndexError: string index out of range
</code></pre>
<p>你应该这样做:</p>
^{pr2}$