2.12.2 for循环

# for 循环
for letter in 'Names':
    print(letter)
'''
N
a
m
e
s
'''
name_list=['walter','Nicole','d']
for name in name_list:
    print(name)
'''
walter
Nicole
d
'''

#遍历 0到4
for r in range(101):
    print(r)


# 求101以内的和
sum=0
for i in range(101):
    sum=sum + i
print(sum)