擅长:python、mysql、java
<pre><code>file = open(filename)
for segment in file.read().split("\n\ntarget"):
interested_lines = segment.split('\n')[-3:-1] #Fetch last two lines
split1 = interested_lines[0].split()
split2 = interested_lines[1].split()[2:-1]
for i in range(0,len(split1)<len(split2)):
split1.append("")
req = ""
for i in range(0,len(split2)):
req += split2[i]+split1[i].lower()
for j in range(i+1,len(split1)):
req += split1[j]
print req
</code></pre>
<p><strong>输出</strong></p>
<pre><code>AguguuCAAucccaGAGucccu
CgugUcggggGCAgggaggga
AguccuugACggaAagagaggu
AuugguuACAcgUCUGAUGACA
UgagucaUUaccauugCCAAA
</code></pre>