用於加密相關的操作，3.x 裡代替了 md5 模塊和 sha 模塊

主要提供 SHA1 , SHA224 , SHA256 , SHA384 , SHA512 , MD5 算法

import hashlib

m = hashlib.md5()
m.update(b"Hello")
m.update(b"It's me")
print(m.digest())
m.update(b"It's been a long time since last time we ...")

print(m.digest()) #2進制格式hash
print(len(m.hexdigest())) #16進制格式hash
'''
def digest(self, *args, **kwargs): # real signature unknown
""" Return the digest value as a string of binary data. """
pass

def hexdigest(self, *args, **kwargs): # real signature unknown
""" Return the digest value as a string of hexadecimal digits. """
pass

'''
import hashlib

# ######## md5 ########

hash = hashlib.md5()
hash.update('admin')
print(hash.hexdigest())

# ######## sha1 ########

hash = hashlib.sha1()
hash.update('admin')
print(hash.hexdigest())

# ######## sha256 ########

hash = hashlib.sha256()
hash.update('admin')
print(hash.hexdigest())

# ######## sha384 ########

hash = hashlib.sha384()
hash.update('admin')
print(hash.hexdigest())

# ######## sha512 ########

hash = hashlib.sha512()
hash.update('admin')
print(hash.hexdigest())