题目描述:
# '''
# case 1:
# '''
# S1 = [1,2]
# S2 = [1,2]
# S3 = [3,4,5]
# S4 = [3,4]
# S5 = [3,5]
# S6...S5非空,但S3∩S4∩S5是空集,
这种情况也要计算S3 ∪S4∪S5
'''
S1 = [1,2]
S2 = [1,2]
S3 = [2,3,4,5]
S4 = [3,4]
S5 = [3,5]
S6...= [6,7]
S7 = [7,8]
S=[S1,S2,S3,S4,S5,S6,S7]
P1=[]
P2=[]
for i in S:
j=i
for j in S:
if len(S)=...S)==2):
print(P1)
else:
P2=P1
P1=[]
print(P2)
del S[0]
感悟:
1.python