摘要： def f(n, m): data = [[col for col in range(n)] for row in range(m)] for row in data: print(row) print('--------') new_data = [[a for a in range(m)] for b in range(n)] # ... 阅读全文

摘要： data = [[col for col in range(4)] for row in range(5)] for row in data: print(row) print('--------') print(len(data)) for r_index, row in enumerate(data): for c_index in range(r_index, le... 阅读全文