使用代码计算列表 maze 中有多少个 "1",代码正确的是
maze = [
[1,1,1,1,1,1,1,1,1], [1,0,1,0,0,0,0,0,1], [1,0,1,1,0,1,1,1,1], [1,0,0,0,0,1,0,0,1], [1,0,1,1,0,1,0,1,1], [1,0,0,1,0,0,0,0,1], [1,1,0,1,0,1,1,1,1],[1,0,0,1,0,0,0,0,1], [1,1,1,1,1,1,1,1,1], ]
count = 0
for i in maze:
for j in i:
count += j
print(count)
count = []
for i in maze:
count.append(sum(i))
print(sum(count))
count = sum(maze)
print(count)
count = []
for i in maze:
count.extend(i)
print(sum(count))