将字典转换成变量：>>> locals().update({
   'a':1,'b':2})>>> a1>>> b2字符串与列表相互转换    str >>>list         str1 = "12345"          list1 = list(str1)          print list1                    str2 = "123 sjhid dhi"          list2 = str2.split() #or list2 = str2.split(" ")          print list2                    str3 = "www.google.com"          list3 = str3.split(".")          print list3      list >>>str        str4 = "".join(list3)          print str4          str5 = ".".join(list3)          print str5          str6 = " ".join(list3)          print str6