组合数据类型练习

a = 'examples'
print(a)
for i in a:
    print(i)

s = 'this is a string examples'
ls = s.split()
print(ls)
for i in ls:
    print(i


tup = ('Nacy', 'Andy', 56);
print(tup)
for i in tup:
    print(i)

names = ['Michael','Tracy','Bob']
score = [88,75,95]
d = dict(zip(names,score))
print(d)
for i in d:
    print(i)

s = d.keys()
print(s)
for i in s:
    print(i)