• python学习笔记——类


    # coding='utf-8'
    
    class User():
        def __init__(self,name,sex):
            self.name = name
            self.sex = sex
            print '这里是构造函数'
        def setName(self,name):
            self.name = name
        def getName(self):
            return self.name
    user = User("python",'男')
    user.setName("ruby")
    print user.getName()
    print user.name
    print user.sex
    #===========打印结果===============
    #这里是构造函数
    #ruby
    #ruby
    #男
    

    ruby的类定义

    require 'jcode'
    $KCODE='u'
    
    class User
      attr_accessor :name,:sex
      def initialize(name,sex)
        @name = name
        @sex = sex
        p 'this is a constructor'
      end
      
      def get_name
        @name
      end
      
      def set_name(name)
        @name = name
      end
    
    end
    
    user = User.new('Ruby','11')
    user.set_name('rubyruby')
    p user.get_name
    p user.name
    p user.sex
    

    javascript的类定义

          function User(name,sex){
            this.name = name;
            this.sex = sex;
            alert("这里是构造函数")
          }
          User.prototype ={
            getName : function(){
              return this.name
            },
            setName :function(name){
              this.name = name
            }
          }
          var user = new User("XXX",'man')
          user.setName("YYY");
          alert(user.name)
          alert(user.sex)
    
    
    # -*- coding:utf-8 -*-
    # 这是一个简单的类,用于输出一个精确到小数点后两位的浮点数
    
    class RoundFloatManual(object):
        def __init__(self,val):
            assert isinstance(val,float),\
                "Value must be a float"
            self.value = round(val,2)
        def __str__(self):
            return '%.2f' % self.value
    rfm = RoundFloatManual(4.288)
    print rfm
    
    
    
    # -*- coding:utf-8 -*-
    
    class Time60(object):
        '用于小时与分钟的加减法运算'
        def __init__(self, hr=0, min=0):
            self.hr = hr
            self.min = min
        def __str__(self):
            return '%d:%d' % (self.hr, self.min)
        __repr__ = __str__
        def __add__(self, other):
            a = divmod(self.min + other.min, 60)
            return self.__class__(self.hr + other.hr + a[0], a[1])
        def __iadd__(self, other):
            a = divmod(self.min + other.min, 60)
            self.hr += self.hr + other.hr
            self.min += a[1]
            return self
    
    a = Time60(10,30)
    b = Time60(8,45)
    print a+b
    
    # -*- coding:utf-8 -*- class NumStr(object): def __init(self, num=0, string=''): self.__num = num self.__string = string def __str__(self): return '[%d::%r]' % \ (self.__num, self.__string) __repr__ = __str__ def __add__(self, other): if(isinstance(other, NumStr)): return self.__class__(self.__num + other.__num, self.__string + self.__string) else: raise TypeError, '类型错误' def __mul__(self, num): if(isinstance(num, int)): return self.__class__(self.__num * num, self.__string * num) else: raise TypeError, '类型错误' def __nonzero__(self): return self.__num or len(self.__string) def __norm_cval(self,cmpres): return cmp(cmpres,0) def __cmp__(self,other): return self.__norm_cval(cmp(self.__num,other.__num))+\ self.__norm_cval(cmp(self.__string,other.__string))
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  • 原文地址:https://www.cnblogs.com/rubylouvre/p/2091714.html
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