哪里出错了吗
for a in [1,2,3,4,5,6,7,8,9]; for b in [0,1,2,3,4,5,6,7,8,9]; if a < b: print a*10+b 这又什么错误呀 提示这个 File "D:\test.py", line 1 SyntaxError: Non-ASCII character '\xa3' in file D:\test.py on line 1, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details