先定义一个类：
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class Point: def __init__(self, x, y): self.x = x self.y = y |
下面我们使用9种方法来生成新的对象：
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point1 = Point(1, 2) point2 = eval("{}({}, {})".format("Point", 1, 2)) point3 = globals()["Point"](1, 2) point4 = locals()["Point"](1, 2) point5 = getattr(sys.modules[__name__], "Point")(1, 2) point6 = copy.deepcopy(point1) point7 = point1.__class__(1, 2) point8 = type('Point', (Point, ), {})(1, 2)point9 = types.new_class('Point', (Point, ), {})(1, 2) |
PS: 需要导入sys和types模块·
