不明白这两种写法有什么不同。求大神指点
for x in [1, 2, 3, 4, 5, 6, 7, 8, 9]:
for y in [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]:
if x < y:
print x*10+y
for x in ['1','2','3','4','5','6','7','8','9']:
for y in ['0','1','2','3','4','5','6','7','8','9']:
if x<y:
print (x+y)
2017-07-12
举报