从文件读取并将内容赋值给Python中的变量

Question

我有一个ECC密钥值，保存在一个文本文件里，里面有好几行内容。我想把这个值赋给一个变量，以便后续使用。虽然我能从文件中读取到这个密钥值，但我不知道怎么把它赋给一个变量。我不想把它当成一个数组。比如：

variable = read(public.txt)

我用的是Python 3.4

Answer 1

# Get the data from the file
with open('public.txt') as fp:
  v = fp.read()

# The data is base64 encoded. Let's decode it.
v = v.decode('base64')

#  The data is now a string in base-256. Let's convert it to a number
v = v.encode('hex')
v = int(v, 16)

# Now it is a number. I wonder what number it is:
print v
print hex(v)

#!/usr/bin/python3

import codecs

# Get the data from the file
with open('public.txt', 'rb') as fp:
  v = fp.read()

# The data is base64 encoded. Let's decode it.
v = codecs.decode(v,'base64')

#  The data is now a string in base-256. Let's convert it to a number
v = codecs.encode(v, 'hex')
v = int(v, 16)

# Now it is a number. I wonder what number it is:
print (v)
print (hex(v))

或者，在python3中：