Python : 字串串接的方法

import datetime as dt

zName='Huang'

zNow3=dt.datetime.today().strftime('%Y-%m-%d %H:%M:%S.%f')[:-3]

nPrice=15

nQty=24

zPrint=''

zHi='Hi!!! '

zNow=', it is '

##字串直接相加串接

zPrint=zPrint+zHi+zName+zNow+zNow3

print(zPrint)    #Hi!!! Huang, it is 2019-08-05 21:00:16.658

#使用join()串接串列中的字串

zPrint=''

aString=['Hi!!! ','Huang',', it is ','2019-08-05 21:00:16.658']

zPrint=zPrint.join(aString)

print(zPrint)    #Hi!!! Huang, it is 2019-08-05 21:00:16.658

#使用%格式化字串帶入變數

zPrint="Hi!!! %s, it is %s. %dx%d=%d"

zPrint=zPrint%(zName, zNow3, nPrice, nQty, nPrice*nQty)

print(zPrint)    #Hi!!! Huang, it is 2019-08-05 21:00:16.658. 15x24=360