# 计算1 - 100 的和

sum = 0
for i in range(1, 101):
    sum = sum + i

print(sum)

# 计算100以内奇数和

sum = 0
n = 99
while n >0:
    sum = sum + n
    n = n -2

print(sum)

# 计算偶数和

sum = 0
n = 2
while n <= 100:
    sum = sum + n
    n = n + 2
print(sum)


n = 0
while n < 10:
    n = n + 1
    if n % 2 == 0:
        continue
    print(n)

拒绝死循环