#求一到一百所有整数的和
n = 1 s = 0 while n < 101: s = s + n n = n + 1 print(s)
#输出一到一百所有偶数
#pass
n = 1
s = 0
while n < 101:
temp = n % 2
if temp == 0:
print(n)
n = n + 1
else:
pass
n = 1 s = 0 while n < 100: temp = n % 2 if temp == 0: s = s - n #前面的s指所有数的总和 else: s = s + n n = n + 1 print(s)