列表字典实例

矩阵转换

 1 #!/usr/local/bin/python3
 2 
 3 # 通用
 4 def transpose_irregular(matrix_s):
 5     print('原矩阵为:',matrix_s)
 6     matrix_d = [[0 for col in range(len(matrix_s))] for row in range(len(matrix_s[0]))]
 7     print(matrix_d)
 8     for i in range(len(matrix_s[0])):
 9         for j in range(len(matrix_s)):
10             matrix_d[i][j] = matrix_s[j][i]
11     return matrix_d
12 
13 # 方阵
14 def transpose_regular(matrix_s):
15     print('原矩阵为:',matrix_s)
16     for i in range(len(matrix_s)):
17         for j in range(i):
18             matrix_s[i][j],matrix_s[j][i]=matrix_s[j][i],matrix_s[i][j]
19 
20     return matrix_s
21 
22 if __name__ ==  '__main__':
23     row=int(input('输入矩阵行数：'))
24     col=int(input('输入矩阵列数：'))
25     matrix_s=[[0 for col in range(col)] for row in range(row)]
26     for i in range(row):
27         matrix_s[i] = input('输入第%s行数据:'%i).split(' ')
28 
29     if len(matrix_s) == len(matrix_s[0]):
30         matrix_d=transpose_regular(matrix_s)
31     else:
32         matrix_d=transpose_irregular(matrix_s)
33     print('转换后矩阵为:',matrix_d)

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