继续整理python------hashlib

## hashlib  
  
'''  
加密算法，hashlib里的加密算法不可逆  
  
'''  
  
import hashlib  
  
  
msg = '中午一起吃饭！'  
r = hashlib.md5(msg.encode('utf-8'))  
  
# 取出16进制加密的值  
print(r.hexdigest())  
  
r = hashlib.sha1(msg.encode('utf-8'))  
print(r.hexdigest())