查看python CSV模块：http ://docs.python.org/library/csv.html
import csv
reader = csv.reader(open("myfile.csv", "rb"),
delimiter='\t', quoting=csv.QUOTE_NONE)
header = []
records = []
fields = 16
if thereIsAHeader: header = reader.next()
for row, record in enumerate(reader):
if len(record) != fields:
print "Skipping malformed record %i, contains %i fields (%i expected)" %
(record, len(record), fields)
else:
records.append(record)
# do numpy stuff.
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