Python实现计算文件MD5和SHA1的方法示例

#file md5import sys;import hashlib;import os.path;def GetFileMd5(strFile): file = None; bRet = False; strMd5 = ""; strSha1 = ""; try: file = open(strFile, "rb"); md5 = hashlib.md5(); sha1 = hashlib.sha1(); strRead = ""; while True:  strRead = file.read(8096);  if not strRead:  break;  else:  md5.update(strRead);  sha1.update(strRead); #read file finish bRet = True; strMd5 = md5.hexdigest(); strSha1 = sha1.hexdigest(); except: bRet = False; finally: if file:  file.close() return [bRet, strMd5, strSha1];def writFile(strInfo): file = None; file = open("E://1.txt", 'w+'); file.write(strInfo); file.write("/n"); if file: file.close();if "__main__" == __name__:  bOK , md5str1, sha1str1 = GetFileMd5("E://1.mp3");  print(md5str1);  md5All = md5str1 + "/t" + sha1str1;  md5All += "/n";  bOK , md5str2, sha1str2 = GetFileMd5("E://2.mp3");  print(md5str2);  writFile(md5str2 + "/t" +sha1str2);  md5All += (md5str2 + "/t" + sha1str2);  md5All += "/n";  bOK , md5str3, sha1str3 = GetFileMd5("E://3.mp3");  print(md5str3);  writFile(md5str3 + "/t" +sha1str3);  md5All += (md5str2 + "/t" + sha1str3);  md5All += "/n";  writFile(md5All);