1. 科学计数法：

>>> format(pow(1.3,50)*10000,'.2e')

'4.98e+09'

 

2. Python文件操作

主要功能，1）扫描目录，找到APK文件；2）解析debug/release;3)使用debug/release+time生成文件名；4）复制文件到远程目录给测试。

import sys,os,shutil,zipfile,time,string,re #导入依赖库def getTime():    return time.strftime("%m_%d_%H_%M",time.localtime(time.time()))def FindapkName(MyPath):      found =0        for fileName in os.listdir(MyPath):          FilePath = os.path.abspath(os.path.join(MyPath, fileName))           #print('遍历文件 ：' + FilePath )                  #       输出找到的.txt格式的文件                      if ".apk" in fileName:            print('找到apk文件 ：' + FilePath )            if found==1:                print('找到多个APK文件，退出')                sys.exit(1)            found =1            foundPath = FilePath            if found==1:        return foundPath    else:        print('没有找到apk')        sys.exit(1)def removeDot(line):        return re.sub(r'[{}]+'.format(string.punctuation),'',line )def getIsDebug(fileName):    if "debug.apk" in fileName:        return 'debug'    if "release.apk" in fileName:        return 'release';            print('getIsDebug failed')    sys.exit(1)def getAppVersion(fileName):    file = open(fileName, mode='r', encoding='UTF-8')     for line in file:        lineContent = line.split()        #print(lineContent)        if len(lineContent) ==2:            #print(lineContent)            if lineContent[0] == 'versionName':                version = lineContent[1]                #strip ""                return eval(version)    print('getAppVersion failed')    sys.exit(1)#get versiongradleFileName = os.getcwd()+'/app/'+'build.gradle'version = getAppVersion(gradleFileName)print('version='+version)appDIR = os.getcwd()+'/app/'remoteDir = '//10.18.0.100/test/'#get AS generated APKASGeneratedName = FindapkName(appDIR)#print('ASGeneratedName =' + ASGeneratedName)#get debug# settingFileName = os.getcwd()+'/app/'+'src/main/java/'+'AppSetting.java'     debugString = getIsDebug(ASGeneratedName)print('isDebug =' + debugString)releaseAPKName =  'SelfDriving_v' + version + '_'+debugString + '_'+getTime()+'.apk'#write to 100remoteVersiondDIR = remoteDir+'v'+versionif os.path.exists(remoteVersiondDIR) == False:    print('创建远程目录'+remoteVersiondDIR)    os.mkdir(remoteVersiondDIR)else:    print('远程目录'+remoteVersiondDIR+'已经存在')print('写入文件：'+remoteVersiondDIR+'/'+releaseAPKName +'请耐心等待')shutil.copy(ASGeneratedName,remoteVersiondDIR+'/'+releaseAPKName)remoteFile = 'SelfDriving_'+debugString+'.apk'print('写入文件：'+remoteDir+remoteFile)shutil.copyfile(ASGeneratedName,remoteDir+remoteFile)#delete local APKos.remove(ASGeneratedName)