python 计算1+2+3+……+100
#计算1+2+3+……+100
sum = 0
num = 1
while num <= 100:
sum += num #1+……+99 + 100
num += 1
print("sum = %d" % (sum))
#计算1+2+3+……+100
sum = 0
num = 1
while num <= 100:
sum += num #1+……+99 + 100
num += 1
print("sum = %d" % (sum))
