enumerate函数使用（增加列表，元组，字典，字符串等的下标）

aa = ("ssssss","gggggg","kkkkkk",)
bb = ["sdg","sdgdg","wefef",2334,4567,]
cc = {"k1":"v1","k2":"v2",}
dd = "liuzm"
for a in enumerate(aa):
    print(a)

for b in enumerate(bb):
    print(b)

for c in enumerate(cc):
    print(c)

for d in enumerate(dd):
    print(d)

执行结果：

(0, 'ssssss')
(1, 'gggggg')
(2, 'kkkkkk')
(0, 'sdg')
(1, 'sdgdg')
(2, 'wefef')
(3, 2334)
(4, 4567)
(0, 'k2')
(1, 'k1')
(0, 'l')
(1, 'i')
(2, 'u')
(3, 'z')
(4, 'm')