http://www.oschina.net/code/snippet_1791760_37169 2014
本例实现直接中二进制文件读取原始数据并写入新的数组，且把字节转换成适当的类型。
1. [文件]
array.py ~ 486B 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | import array
import binascii
import tempfile
a = array.array('i', xrange(5))
print 'A1:', a
#write the array of numbers to a temporary file
output = tempfile.NamedTemporaryFile()
a.tofile(output.file)
output.flush()
#read the raw data
with open(output.name, 'rb') as input:
raw_data = input.read()
print 'Raw Contents:',binascii.hexlify(raw_data)
#read the data into an array
input.seek(0)
a2 = array.array('i')
a2.fromfile(input, len(a))
print 'A2:', a2
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