流程控制-创新互联
1、单条件流程控制
创新互联长期为1000+客户提供的网站建设服务,团队从业经验10年,关注不同地域、不同群体,并针对不同对象提供差异化的产品和服务;打造开放共赢平台,与合作伙伴共同营造健康的互联网生态环境。为振兴企业提供专业的成都网站制作、成都做网站、外贸营销网站建设,振兴网站改版等技术服务。拥有10多年丰富建站经验和众多成功案例,为您定制开发。If:
else:
2、多条件的流程控制
If xxx:
print yyy4
elif xxxx:
print yyy3
elif:
print yyy2
else:
print yyy1
eg:修改ex1.py
#!/usr/bin/env python
# _*_ coding = utf-8 _*_
import getpass
name = raw_input('please inputyour username:')
pwd = getpass.getpass('inputyour password:')
print 'the name is:',name
print 'the password is:',pwd
if name == 'huwei' and pwd =='huwei123':
print 'you login successfully!,welcomehuwei,normal user'
elif name == 'tony' and pwd =='123':
print 'you login successfully!,welcometony,super user'
elif name == 'humin' and pwd =='123':
print 'you login successfully!,welcomehumin,superhero user'
else:
print 'your password is wrong!'
执行结果:
[root@localhost~]# python ex1.py
please input yourusername:huwei
input yourpassword:
the name is:huwei
the password is:huwei123
you loginsuccessfully!,welcome huwei,normal user
[root@localhost~]# python ex1.py
please input yourusername:humin
input yourpassword:
the name is:humin
the password is:123
you loginsuccessfully!,welcome humin,superhero user
[root@localhost~]# vi ex1.py
[root@localhost~]# python ex1.py
please input yourusername:tony
input yourpassword:
the name is: tony
the password is:123
you loginsuccessfully!,welcome tony,super user
[root@localhost~]#
eg:
变种ex1.py:
import getpass
name = raw_input('please inputyour username:')
pwd =getpass.getpass('password:')
if pwd == '123':
if name == 'tony':
print 'tony,normal'
elif name == 'huwei':
print 'huwei,super'
elif name == 'humin':
print 'humin,superhero'
else:
print 'password is wrong!'
else:
print 'password is wrong!'
执行结果:
[root@localhost~]# python ex1.py
please input yourusername:huwei
input yourpassword:
the name is:huwei
the password is:huwei123
you loginsuccessfully!,welcome huwei,normal user
[root@localhost~]# python ex1.py
please input yourusername:humin
input yourpassword:
the name is:humin
the password is:123
you loginsuccessfully!,welcome humin,superhero user
[root@localhost~]# vi ex1.py
[root@localhost~]# python ex1.py
please input yourusername:tony
input yourpassword:
the name is: tony
the password is:123
you loginsuccessfully!,welcome tony,super user
[root@localhost~]#
注:
1.冒号是条件控制的结束
2.同级缩进要一致:IndentationError2
另外有需要云服务器可以了解下创新互联scvps.cn,海内外云服务器15元起步,三天无理由+7*72小时售后在线,公司持有idc许可证,提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案,具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势,专为企业上云打造定制,能够满足用户丰富、多元化的应用场景需求。
当前名称:流程控制-创新互联
当前网址:http://scyanting.com/article/dccdes.html