Python基础（循环）

# arr = [1,2,3,4,5,6,7,8,9]
# sum = 0
# for num in arr:
#     sum = sum + num
# print(sum)

# arr = list(range(101))#range获取0~101的整数数列
# sum = 0
# for num in arr:
#     sum = sum + num
# print(sum)

# sum = 0
# num = 199
# while num > 0:
#     sum = sum + num
#     num = num - 2
# print(sum)

n = 1
while n < 20:
    n = n + 1    
    if n > 10:#当n大于10退出循环
        break
    if n % 2 == 0:#当n时偶数时，执行contineu语句
        continue#continue语句会直接继续下一轮循环，后续的print()语句不会执行
    print(n)