Beginning Python From Novice to Professional (5) －条件与循环

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Beginning Python From Novice to Professional (5) －条件与循环

条件与循环条件运行: name = raw_input('What is your name? ') if name.endswith('Gumby'): print 'Hello, Mr.Gumby' What is your name? Gumby Hello, Mr.Gumby name = raw_input('What is your name? ') if name.endswith('Gumby'): print 'Hello, Mr.Gumby' else: print 'He…

Beginning Python From Novice to Professional (4) －演示样本格式字符串

$ gedit price.py #!/usr/bin/env python width = input('Please enter width: ') price_width = 10 item_width = width - price_width header_format = '%-*s%*s' format = '%-*s%*.2f' print '=' * width print header_format % (item_width, 'Item', price_width, 'P…

Beginning Python From Novice to Professional (7) －类别

类别创建一个简单的类: #!/usr/bin/env python __metaclass__ = type class Person: def setName(self,name): self.name = name def getName(self): return self.name def greet(self): print "Hello,world! I'm %s." % self.name foo = Person() bar = Person() foo.setNam…

Beginning Python From Novice to Professional (9) － Socket

Socket 小型server: #!/usr/bin/env python import socket s = socket.socket() host = socket.gethostname() port = 1234 s.bind((host,port)) s.listen(5) while True: c,addr = s.accept() print 'Got connection from',addr c.send('Thank you for connecting') c.clo…

Python基础__Python语法基础、条件、循环

之前主要讨论的是Python的对象,这本节将第一次走进Python的语言之旅,将会介绍条件与循环.本节我们将会涉及到复合语句,简要介绍一下Python的语法规则是有必要的Python语法规则 1.语句是逐个运行的.Python一般都会按照次序头到尾执行文件中嵌套的语句,这也符合正常人的思考问题的方式.但是像条件.循环等语句会使得解释器在程序内跳跃.因为Python经过一个程序的路径叫做控制流程,像条件.循环等会对控制流程产生影响的语句通常叫做控制及流程语句 2.块和语句的边界会自动检测.就像我们…