基础练习题

a = 1
while a <= 10:
   if a == 7:
       pass
   else:
       print(a)
   a = a + 1

a = 1
while a <= 100:
    if a%2 == 0:
        pass
    else:
        print(a)
    a = a + 1

a = 1
while a <= 100:
    if a%2 == 0:
        print(a)
    else:
        pass
    a = a + 1

a = 1
sum = 0
while a <= 100:
    sum = sum + a
    a = a + 1
print (sum)

a = 1
sum = 0
while a < 100:
    temp = sum % 2
    if temp == 0:
        sum = sum - a
    else :
        sum = sum + a
    a = a + 1
print (sum)