# coding=utf-8
def sub_sum(l):
index=0
sum1=0
sum2=0
for a in l:
if index % 2 ==0:
sum1+=a
else:
sum2+=a
index += 1
return sum1,sum2
l=[1,2,1,4,5,8,6]
sum1,sum2=sub_sum(l)
print('偶数项和={}'.format(sum1))
print('奇数项和={}'.format(sum2))
# Enter a code
s1 = set([1, 2, 3, 4, 6, 8, 10])
s2 = set([1, 2, 3, 4, 5, 6, 7, 8, 9])
flag = s1.isdisjoint(s2)
if not flag:
for item in s1:
if item not in s2:
continue
print(item)
# Enter a code
s1 = set([1, 2, 3, 4, 6, 8, 10])
s2 = set([1, 2, 3, 4, 5, 6, 7, 8, 9])
flag = s1.isdisjoint(s2)
if not flag:
for item in s1:
if item not in s2:
continue
print(item)
dist = {
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
name = '孙雯'
if name in dist.keys():
dist.pop(name)
else:
print('{} not in dist'.format(name))
