转置矩阵-python
ego=[]
era=[]
for b in range(1,10):
ego.append(b)
if not b%3:
era.append(ego)
ego=[]
# ego.clear()
print(era)
for b in range(len(era[0])):
for p in range(b):
era[b][p],era[p][b]=era[p][b],era[b][p]
print(era)
for b in range(len(era[0])):
for p in range(b+1,len(era[0])):
era[p][b],era[b][p]=era[b][p],era[p][b]
print(era)