merge (iterable1, *args)

参数: 

iterable1: 实现 __iter__的可迭代对象, 如 str, tuple, dict, list

*args: 其他实现 __iter__的可迭代对象

返回值:

合并后的迭代对象

使用范例:

Example 1:        source = ['a', 'b', 'c']        result = merge(source, [1, 2, 3])        self.assertEqual(result, ['a', 'b', 'c', 1, 2, 3])        result = merge(source, [1, 2, 3], ['x', 'y', 'z'])        self.assertEqual(result, ['a', 'b', 'c', 1, 2, 3, 'x', 'y', 'z'])    Example 2:        source = 'abc'        result = merge(source, '123')        self.assertEqual(result, 'abc123')        result = merge(source, '123', 'xyz')        self.assertEqual(result, 'abc123xyz')    Example 3:        source = ('a', 'b', 'c')        result = merge(source, (1, 2, 3))        self.assertEqual(result, ('a', 'b', 'c', 1, 2, 3))        result = merge(source, (1, 2, 3), ('x', 'y', 'z'))        self.assertEqual(result, ('a', 'b', 'c', 1, 2, 3, 'x', 'y', 'z'))    Example 4:        source = {
   'a': 1, 'b': 2, 'c': 3}        result = merge(source, {
   'x': 'm', 'y': 'n'}, {
   'z': '1'})        self.assertEqual(result, {
    'a': 1, 'b': 2, 'c': 3, 'x': 'm', 'y': 'n', 'z': '1'})

代码:

@(iterable1='__iter__')def merge(iterable1, *args):    """    Returns an type of iterable1 value, which merged after iterable1 used *args    :exception TypeError: if any parameter type of args not equals type(iterable1)    """    result_list = list(iterable1) if not isinstance(iterable1, dict) else eval('list(iterable1.items())')    for i, other in enumerate(args, start=1):        if not isinstance(other, type(iterable1)):            raise TypeError('the parameter type of index {} not equals type of index 0'.format(i))        if not isinstance(other, dict):            result_list[len(result_list):len(result_list)] = list(other)        else:            result_list[len(result_list):len(result_list)] = list(other.items())    if isinstance(iterable1, str):        return ''.join(result_list)    elif isinstance(iterable1, tuple):        return tuple(result_list)    elif isinstance(iterable1, dict):        return dict(result_list)    else:        return result_list