m）中提取mxm子矩阵？" data-bg="https://pythondict-1252734158.file.myqcloud.com/home/www/pythondict/wp-content/uploads/2023/10/web-4877959_1280-150x100.jpg" data-prefetch="true"> 知识问答 m）中提取mxm子矩阵？" data-prefetch="true">切片NumPy 2d数组，或者如何从nxn数组（n> m）中提取mxm子矩阵？ 我想切片一个NumPy nxn数组。我想提取该数组的m行和列的任意选择（即，行/...
