python之1100之间的总和，奇数和，偶数和

一、总和

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

 二、奇数和

i = 1
sum = 0
while i <= 100:
    if i % 2 != 0:
        sum += i
    i += 1
print(sum)

 三、偶数和

i = 1
sum = 0
while i <= 100:
    if i % 2 == 0:
        sum += i
    i += 1
print(sum)