從文件中讀取內容並將內容分配給Python中的變量

Question

我在文本文件中有一個ECC鍵值，我想將該值分配給變量以供進一步使用。雖然我可以從文件中讀取關鍵值，但我不知道如何將值賦給變量。我不希望它作爲一個數組。例如，

variable = read（public.txt）。

任何輸入如何做到這一點？

的Python版本是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) 

或者，在python3：

#!/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))