# Ñ°±¦»î¶¯ÀàÐÍÓÅÏȼ¶
# ¶à¸öÑ°±¦»î¶¯²¢´æµÄʱºòÓÅÏȼ¶ÉèÖ㬵±²¢´æʱֻÓÐÓÅÏȼ¶¸ßµÄÓÐЧ, ÈçºÏ·þ¡¢°Ù·þ¡¢½ÚÈջ¾ùÓÐÑ°±¦Ê±ÖصþÖ»ÓÐÓÅÏȼ¶×î¸ßµÄÓÐÓÃ
#
# »î¶¯ÀàÐÍ˵Ã÷
#	0	ĬÈÏ
#   1   »î¶¯Ñ°±¦ÀàÐÍ1
#   2   »î¶¯Ñ°±¦ÀàÐÍ2

(

[1,]

)