第一天自学python笔记

count = 0
while count < 10:
    count += 1             #自增
    if count == 7:
        pass
    else:print(count)
方法一：
count = 1
while count < 101:
    print(count)
    count += 2

方法二：
count = 1
while count < 101:
    if count % 2 == 0:
        print(count)
    count += 1


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