day1 作业

#day1，作业1：使用while输出1 2 3 4 5 6 8 9 10
'''
count = 0
while count < 10:
    count = count + 1
    if count == 7:
        continue
    print (count)
'''



#day1，作业2：求1-100的所有数的和
'''
count = 1
sum = 0
while count <= 100:
    sum = count + sum
    count = count + 1
print (sum)
'''




#day1，作业3：打印输出1-100的所有奇数
'''
count = 0
a = 2
while count < 100:
    count = count +1
    b = count % a 
    if b == 0:
        continue
    print (count)
'''



#day1，作业4：打印输出1-100的所有偶数
'''
count = 0
a = 2
while count < 100:
    count = count + 1
    b = count % a
    if b == 1:
        continue
    print(count)
'''




#day1，作业5：求1-2+3-4+5……99的所有数的和
'''
count = 0
num = 1
sum = 0
while count < 100:
    count = count +1
    sum = (-1) ** (count + 1) * count + sum
print(sum)
'''