# Python的循环有两种,一种是for...in循环,依次把list或tuple中的每个元素迭代出来
names = [
'Michael',
'Bob',
'Tracy']
for name
in names:
print(name)
# 计算1-10的整数之和
sumAdd =
0
for x
in [1, 2, 3, 4, 5, 6, 7, 8, 9, 10
]:
sumAdd = sumAdd +
x
print(sumAdd)
# python提供一个range()函数,可以生成一个整数序列,再通过list()函数可以转换为list。比如range(5)生成的序列是从0开始小于5的整数:
print(list(range(5)))
# [0, 1, 2, 3, 4]
sum100 =
0
for x
in range(101
):
sum100 = sum100 +
x
print(sum100)
# while 计算100以内所有奇数之和
sumWhile =
0
n = 99
while n >
0:
sumWhile = sumWhile +
n
n = n - 2
print(sumWhile)
# break语句可以提前退出循环。
n = 1
while n <= 100
:
if n > 10:
# 当n = 11时,条件满足,执行break语句
break # break语句会结束当前循环
print(n)
n = n + 1
print(
'END')
# 通过continue语句,跳过当前的这次循环,直接开始下一次循环
n =
0
while n < 10
:
n = n + 1
if n % 2 == 0:
# 如果n是偶数,执行continue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)
转载于:https://www.cnblogs.com/shaozhiqi/p/11543492.html