Python中多个数组行合并及列合并的方法总结

import numpy as np # 创建数组 a = [[1,2,3],[4,5,6]] b = [[1,1,1],[2,2,2]] # 数组纵向合并 c = np.vstack((a,b)) c = array([[1, 2, 3], [4, 5, 6], [1, 1, 1], [2, 2, 2]] c = np.r_[a,b] c = array([[1, 2, 3], [4, 5, 6], [1, 1, 1], [2, 2, 2]]) # 数组横向合并 d = np.hstack((a,b)) d = array([[1, 2, 3, 1, 1, 1], [4, 5, 6, 2, 2, 2]]) d = np.c_[a,b] d = array([[1, 2, 3, 1, 1, 1], [4, 5, 6, 2, 2, 2]])

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