#使用循环求和
sum = 0
for x in range(101):
    sum += x
print(sum)

#计算所有奇数的和
sum = 0
n = 99
while n > 0:
    sum = sum + n
    n = n - 2
print(sum)

#请利用循环依次对list中的每个名字打印出Hello, xxx!：
L = ['Bart', 'Lisa', 'Adam']
for name in L:
    print(name)