7 - for循环while循环 1+2+...+100和

'''
计算1+2+3+4+....+100的和？ (while循环)
'''
u = 1
sum = 0
while u<=100:
sum = sum + u
u = u + 1
print(sum)

计算1+2+3+4+....+100的和？(for循环)

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