Python控制流-蒲公英云

Python控制流

Myth丶恋晨 2022-06-14 20:14 302阅读 0赞

python学习代码都来之于《简明Python教程》最新版本基于Python3版本

if:

number = 23
guess = int(input('Enter an integer:'))
if guess == number:
    #新的代码块从里开始
    print('Cougratulations,youguess it.')
    print('(but you do not win any prizes!)')
elif guess < number:
    print('NO,it is a little higher than that')
else:
    print('NO,it is a little lower than that')
print('Done')
number = 23
guess = int(input('Enter an integer : '))
if guess == number:
   # 新块从这里开始
    print('Congratulations, you guessed it.')
    print('(but you do not win any prizes!)')
   # 新块在这里结束
elif guess < number:
   # 另一代码块
    print('No, it is a little higher than that')
   # 你可以在此做任何你希望在该代码块内进行的事情
else:
    print('No, it is a little lower than that')
   # 你必须通过猜测一个大于（>）设置数的数字来到达这里。
print('Done')
# 这最后一句语句将在
# if 语句执行完毕后执行。

for:

for i in range (1,5):
    print(i)
else:
    print('this for loop is over:')

while:

number = 23
running = True
while running:
    guess = int(input('Enter an integer : '))
    if guess == number:
        print('Congratulations, you guessed it.')
        # 这将导致 while 循环中止
        running = False
    elif guess < number:
        print('No, it is a little higher than that.')
    else:
        print('No, it is a little lower than that.')
else:
    print('The while loop is over.')
# 在这里你可以做你想做的任何事
print('Done')