2017-9-14 通过__slots__节省内存

见原文

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class Measurement:
__slots__ = ['x', 'y', 'val']

def __init__(self, x, y, value):
self.x = x
self.y = y
self.val = value

merge dict

merged_dict

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dict_merged = {**a, **b, **c}

支持小徐?賞一賞!