df = pd.DataFrame({'a': [1, 2, 3], 'b': [4, 5, 6]}) |
参考:https://www.geeksforgeeks.org/python-pandas-df-size-df-shape-and-df-ndim/
df = pd.DataFrame({'a': [1, 2, 3], 'b': [4, 5, 6]}) |
参考:https://www.geeksforgeeks.org/python-pandas-df-size-df-shape-and-df-ndim/
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