* for in 嵌套列表
def transpose1(matrix):
cols = len(matrix[0])
return [[row[i] for row in matrix] for i in range(0,cols)]
def transpose2(matrix):
transposed = []
for i in range(len(matrix[0])):
transposed.append([row[i] for row in matrix])
return transposed
def transpose3(matrix):
transposed = []
for i in range(len(matrix[0])):
transposed_row = []
for row in matrix:
transposed_row.append(row[i])
transposed.append(transposed_row)
return transposeddef transpose1(matrix):
col
