# -*- coding = utf-8 -*-
# @Time : 2022/3/21 21:13
# @Author : JoJo
# @File : demo2.py
# @Software: PyCharm
n = 100
sum = 0
while n > 0:
sum = sum + n
n -= 1
print("1到%d的和为:%d"%(n+100,sum))
# -*- coding = utf-8 -*-
# @Time : 2022/3/21 21:13
# @Author : JoJo
# @File : demo2.py
# @Software: PyCharm
n = 100
sum = 0
while n > 0:
sum = sum + n
n -= 1
print("1到%d的和为:%d"%(n+100,sum))