Find the sum of all numbers from 1 to 100

#!/usr/bin/env python 
# -*- coding: utf-8 -*- 
# @Time : 2018/5/6 0006 10:25 
# @Author : Anthony.Waa 
# @Site : 
# @File : ask Sum of all numbers from 
1-100.py # @Software: PyCharm 


# demo1 
# Define the base 
sum = 0 
count = 1 

# Start the loop 
while count < 101: 
    sum += count 
    count += 1 
print(sum) 


# demo2 
define the base 
sum = 0 

# loop start 
for count in range(1,101): 
    sum += count 
print(sum) 


# demo3 
# define base 
sum = 0 
count = 1 

# loop start 
while True: 
    if count == 100: 
        break 
    else:
        count += 1
        sum += count
print(sum)