新零售定義：個人、企業(yè)以互聯(lián)網(wǎng)為依托，通過運用大數(shù)據(jù)、人工智能等先進技術(shù)手段，對商品的生產(chǎn)、流通與銷售過程進行升級改造，進而重塑業(yè)態(tài)結(jié)構(gòu)與生態(tài)圈，并對線上服務(wù)、線下體驗以及現(xiàn)代物流進行深度融合的零售新模式。 New retail is not created out of thin air.It is a new business model after e-commerce has developed to a certain extent and the Internet has become highly popular.It is a major integration of resources and a major upgrade of the retail industry.Both traditional retail and e-commerce will become a part of new retail. #Web3.toHex（primary=None，hexstr=None，text=None） #接受各種輸入并以其十六進制表示形式返回。它遵循JSON-RPC規(guī)范 #def to_hex( #primitive:Primitives=None,hexstr:HexStr=None,text:str=None #)->HexStr:開發(fā)成品I35規(guī)則7O98開發(fā)O7I8 print(Web3.toHex(10))#0xa print(Web3.toHex(hexstr='0x00'))#0x00 print(Web3.toHex(text='asimov'))#0x6173696d6f76 #Web3.toText（primary=None，hexstr=None，text=None） #接受各種輸入并返回其等效字符串。文本被解碼為UTF-8。 print(Web3.toText('0x1254'))#T 開發(fā)流程：MrsFu123 print(Web3.toText('0x6173696d6f76'))#asimov print(Web3.toText(b'asimx6fx76'))#asimov print(Web3.toText('6173696d6f76'))#asimov #Web3.toBytes（primary=None，hexstr=None，text=None） #接受各種輸入并返回等效的字節(jié)數(shù)。文本被編碼為UTF-8。 print(Web3.toBytes(0))#b'x00' print(Web3.toBytes(b'sasas'))#b'sasas' print(Web3.toBytes(hexstr='000F'))#b'x00x0f' print(Web3.toBytes(hexstr='0x000F'))#b'x00x0f' print(Web3.toBytes(text='asimov'))#b'asimov' #Web3.toInt（primary=None，hexstr=None，text=None） #接受各種輸入并返回其等效的整數(shù) print(Web3.toInt(0))#0 print(Web3.toInt(0x00f))#15 print(Web3.toInt(b'x00x0F'))#15 print(Web3.toInt(hexstr='0x00F'))#15 #ValueError:invalid literal for int()with base 10:'sa' #text:interpret as string of digits,like'12'=>12 print(Web3.toInt(text='10'))#10 #Web3.toJSON（obj)obj:Dict[Any,Any] #接受各種輸入并返回等效的JSON。 print(Web3.toJSON({'asimov':'da'}))#{"asimov":"da"}