使用Python生成文件的MD5和sha1，,使用Python生成文件

使用Python生成文件的MD5和sha1，,使用Python生成文件

1.[代码]生成文件的MD5和sha1

#coding=UTF-8# www.iplaypy.com python# XingHe Studio File to MD5 and SHA1def fil_changefileext(filename,extname=''):    # FIL ChangeFileExt 改变文件扩展名    # filename    输入的文件路径名    # extname=''  要更改分扩展名，如 .txt    import os    try:        if extname[0]<>'.':            extname='.'+extname    except:        extname=''    if os.path.splitext(filename)[1]=='':        uouttxt=filename+'.'+extname    elif os.path.splitext(filename)[1]=='.':        uouttxt=filename+extname        else:        uouttxt=filename[:0-len(os.path.splitext(filename)[1])]+extname    return uouttxtdef fil_str2file(fstr,filename):    # FIL STR2File 把字符串保存到文件     try:        outfile=open(filename,'w')        outfile.writelines(fstr)        outfile.close()        return True        except:        return False    #系统主程序开始#-------------------------------------------------------if __name__ == '__main__':        import os,sys,math    # if len(sys.argv)==1:sys.argv.append(r'c:\FreeNAS-8.0.4-RELEASE-x64.iso')    if len(sys.argv)>1:        filepathname=sys.argv[1]        if os.path.isfile(filepathname) :            fmaxs = os.path.getsize(filepathname)+0.00            fpos = 0.00            ppos=0              pmax=50            pjy=0                      fmd5=fil_changefileext(filepathname,'.md5')            fsha1=fil_changefileext(filepathname,'.sha')            ffm=os.path.basename(filepathname)                        #开始处理            print 'Program Runing "'+filepathname+'" ...'            import hashlib            try:                umd5str = hashlib.md5()                usha1str = hashlib.sha1()                xfilepathname=unicode(filepathname,'utf8')                #需要使用二进制格式读取文件内容                ufile = file(xfilepathname,'rb')                while True:                    datas = ufile.read(1024*512)                    if not datas: break                    umd5str.update( datas )                    usha1str.update( datas )                    fpos=fpos+1024*512                    ppos=int(math.floor(fpos / fmaxs * 50))                    pposbfh=int(math.floor(fpos / fmaxs * 100))                    #打印进度条                    if pjy<>ppos: print '['+'*'*ppos +'='*(pmax-ppos)+'] '+str(pposbfh) +'%'                    #打印进度问题未解决，不知道print函数怎么退回到行首覆盖输出，不换行我倒是知道，加个“,”                      pjy=ppos                 uoutstrmd5=str(umd5str.hexdigest())                uoutstrsha1=str(usha1str.hexdigest())                ufile.close()                print ''                fil_str2file(uoutstrmd5+' *'+ffm+'\n',fmd5)                fil_str2file(uoutstrsha1+' *'+ffm+'\n',fsha1)                print 'Task is completed !' + r' [ XingHe Studio File to MD5 and SHA1 ]'                            except:                        print 'Error !' + r' [ XingHe Studio File to MD5 and SHA1 ]'        else:            print 'File "'+filepathname+'" not exist!'+ r' [ XingHe Studio File to MD5 and SHA1 ]'    else:        print  r' [ XingHe Studio File to MD5 and SHA1 ]'        

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