內(nèi)置方法

            
              
                from
              
               collections 
              
                import
              
               namedtuple
free_falling_body 
              
                =
              
               namedtuple
              
                (
              
              
                'free_falling_body'
              
              
                ,
              
              
                [
              
              
                'g'
              
              
                ,
              
              
                't'
              
              
                ]
              
              
                )
              
              
h 
              
                =
              
               free_falling_body
              
                (
              
              
                9.8
              
              
                ,
              
              
                2
              
              
                **
              
              
                (
              
              
                1
              
              
                /
              
              
                2
              
              
                )
              
              
                )
              
              
                print
              
              
                (
              
              h
              
                )
              
              
                # 自由落體運(yùn)動(dòng)
              
              
                print
              
              
                (
              
              h
              
                .
              
              g 
              
                *
              
               h
              
                .
              
              t 
              
                **
              
              
                2
              
              
                /
              
              
                2
              
              
                )
              
              
                # 自由落體高度
              
            
          

free_falling_body(g=9.8, t=1.4142135623730951)
9.800000000000002

自創(chuàng)

            
              
                class
              
              
                Tuple
              
              
                :
              
              
    t 
              
                =
              
              
                (
              
              
                'a'
              
              
                ,
              
              
                'b'
              
              
                ,
              
              
                'c'
              
              
                )
              
              
                for
              
               i 
              
                in
              
               t
              
                :
              
              
                exec
              
              
                (
              
              
                "%s='%s'"
              
              
                %
              
              
                (
              
              i
              
                ,
              
               i
              
                )
              
              
                )
              
              
                print
              
              
                (
              
              
                ' '
              
              
                .
              
              join
              
                (
              
              Tuple
              
                .
              
              t
              
                )
              
              
                )
              
              
                print
              
              
                (
              
              Tuple
              
                .
              
              b
              
                ,
              
               Tuple
              
                .
              
              i
              
                )
              
              
                print
              
              
                (
              
              Tuple
              
                .
              
              __dict__
              
                )
              
            
          

打印結(jié)果

            
              a b c
b c

              
                {
              
              
                '__module__'
              
              
                :
              
              
                '__main__'
              
              
                ,
              
              
                't'
              
              
                :
              
              
                (
              
              
                'a'
              
              
                ,
              
              
                'b'
              
              
                ,
              
              
                'c'
              
              
                )
              
              
                ,
              
              
                'i'
              
              
                :
              
              
                'c'
              
              
                ,
              
              
                'a'
              
              
                :
              
              
                'a'
              
              
                ,
              
              
                'b'
              
              
                :
              
              
                'b'
              
              
                ,
              
              
                'c'
              
              
                :
              
              
                'c'
              
              
                ,
              
              
                '__dict__'
              
              
                :
              
              
                <
              
              attribute 
              
                '__dict__'
              
               of 
              
                'Tuple'
              
               objects
              
                >
              
              
                ,
              
              
                '__weakref__'
              
              
                :
              
              
                <
              
              attribute 
              
                '__weakref__'
              
               of 
              
                'Tuple'
              
               objects
              
                >
              
              
                ,
              
              
                '__doc__'
              
              
                :
              
              
                None
              
              
                }