python计算文件的md5值实例的详细介绍

import hashlib
import os

def get_md5_01(file_path):
 md5 = None
 if os.path.isfile(file_path):
  f = open(file_path,'rb')
  md5_obj = hashlib.md5()
  md5_obj.update(f.read())
  hash_code = md5_obj.hexdigest()
  f.close()
  md5 = str(hash_code).lower()
 return md5

if __name__ == "__main__":
 file_path = r'D:\test\test.jar'
 md5_01 = get_md5_01(file_path)
 print(md5_01)

import hashlib
import os

def get_md5_02(file_path):
 f = open(file_path,'rb') 
 md5_obj = hashlib.md5()
 while True:
  d = f.read(8096)
  if not d:
   break
  md5_obj.update(d)
 hash_code = md5_obj.hexdigest()
 f.close()
 md5 = str(hash_code).lower()
 return md5

if __name__ == "__main__":
 file_path = r'D:\test\test.jar'
 md5_02 = get_md5_02(file_path)
 print(md5_02)