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import pandas as pd import numpy as np df1 = pd.DataFrame(np.array([[‘a‘, 5, 9], [‘b‘, 4, 61], [‘c‘, 24, 9]]), columns = [‘name‘, ‘attr11‘, ‘attr12‘]) df2 = pd.DataFrame(np.array([[‘a‘, 5, 19], [‘b‘, 14, 16], [‘c‘, 4, 9]]), columns = [‘name‘, ‘attr21‘, ‘attr22‘]) df3 = pd.DataFrame(np.array([[‘a‘, 15, 49], [‘b‘, 4, 36], [‘c‘, 14, 9]]), columns = [‘name‘, ‘attr31‘, ‘attr32‘]) print(pd.merge(pd.merge(df1, df2, on = ‘name‘), df3, on = ‘name‘))
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原文地址：http://www.cnblogs.com/blog-3123958139/p/5560026.html
