首页 > 编程语言 > 详细

python学习笔记

时间:2014-06-28 11:32:20      阅读:355      评论:0      收藏:0      [点我收藏+]

1.if语句(python中没有switch语句,可用if……elif……else代替)

格式:

  if 表达式:

    #语句

  else:

    #语句

eg:

bubuko.com,布布扣
number = 23
guess = int(raw_input(‘Enter an integer:‘))

if guess == number:
    print‘Congratulations‘
    print‘but you do not win any prizes!‘
elif guess < number:
    print‘No,it is higher‘
else:
    print‘NO,it is lower‘
print‘Done‘
View Code

2.while语句

格式:

while <test>:

  #语句

else:#可跟else从句

eg:

bubuko.com,布布扣
 1 number = 23
 2 running = True
 3 
 4 while running:
 5     guess = int(raw_input(‘Enter an integer:‘))
 6     if guess == number:
 7         print‘Congratulations‘
 8         running = False
 9     elif guess < number:
10         print‘it is higher‘
11     if guess > number:
12         print‘it is lower‘
13 else:
14     print‘The while loop is over.‘
15 
16 print‘Done‘
View Code

 

3.for语句格式:

for <var> in range(<begin>,<end>):

  #语句

bubuko.com,布布扣
1 for i in range(1,5):
2     print i
3 else:
4     print "The for loop is over"
View Code

 

 

 

 

python学习笔记,布布扣,bubuko.com

python学习笔记

原文:http://www.cnblogs.com/shijianupc/p/3798912.html

踩
(0)
赞
(0)
   
举报
评论 一句话评论(0)
关于我们 - 联系我们 - 留言反馈 - 联系我们:wmxa8@hotmail.com
© 2014 bubuko.com 版权所有
打开技术之扣,分享程序人生!