一、如有两个list，分别为：
a = [1,2,3,4,5,6]
b = ["a","b","c","d","e","f"]
用python来实现 ['a1', 'b2', 'c3', 'd4', 'e5', 'f6'] 的格式，如何实现呢？
下面我用列表推导式来实现
db = [str(x) +str(y) for x,y in zip(b,a)]
print(db)
二、实现对两个字符串进行拼接，然后进行以A -- >Z ，再 a-->z 的顺序排序
a = "awfesdafhjkcasadckjsdackjsadvcnksausafdsch"
b = "SufhwrifjiEIJFDIEJDIej"
list1 = list(a+b)
list2 = sorted(list1)
print(''.join(list2))
