擅长:python、mysql、java
<pre><code>read = False
counting_dict = {}
#run through the lines in the file
for line in file:
if read and 'Hello' not in line:
#do as if the entry already exists
try:
counting_dict[tuple(line.split())] += 1
#if not, create it
except KeyError:
counting_dict[tuple(line.split())] = 1
elif 'Bye' in line:
read = True
#if 'Hello' is in the line but 'Bye' is not,set read to False
else:
read = False
</code></pre>