写一个Python函数,读取文件并返回一个字典,它的键是电子邮件的用户名和他们的键是电子邮件的域。
Question4NotyetansweredMarkedoutof15.00FlagquestionNote:lfyouusefunctionswhichhavenotbeentaughtinclass,youwillgetzeroforthisquestionnomatterwhetherthecodeiscorrectornot.Assumethatyouhaveafilethatitsco