计算1~100的和

计算1~100的和。

s = sum(range(1, 101))
print s

print type(range(1,3))

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

s = reduce(lambda x, y : x + y, range(1, 101))
print ss = sum(range(1, 101))
print