[原创]用定时器和区间比较指令编写“艺术灯”程序

艺术灯动作要求：
ABCD→A→B→C→D
↑`````````````↓
A←B←C←D←ABCD
`梯形图：
``` M8000``T0
┠─┨┠─┨/┠┬—（T0 K50）
┃`````````````├─[ZCP K10 K20 T0 M10]
┃`````````````└─[ZCP K30 K40 T0 M13]
┃```M10```````M0
┠─┨↑┠──┨┠─（M1）
┃```M10```````M1
┠─┨↑┠─┬┨/┠—（M0）
┃```M0`````│
┠─┨┠──┘
┃`M0``M11
┠┨┠┨┠—┬─（Y20）灯A
┃`M0```M15`│
┠┨/┠┨┠─┤
┃```M10````│
┠─┨┠──┘
┃`M0``M12`M13
┠┨┠┨┠┨┠┬─（Y21）灯B
┃`M0````M14`│
┠┨/┠─┨┠┤
┃```M10`````│
┠─┨┠──┘
┃```M0````M14
┠─┨┠─┨┠—┬─（Y22）灯C
┃``M0``M12`M13``│
┠┨/┠┨┠┨┠─┤
┃```` M10``````│
┠──┨┠───┘
┃`M0``M15
┠┨┠┨┠—┬─（Y23）灯D
┃`M0```M11`│
┠┨/┠┨┠─┤
┃```M10````│
┠─┨┠──┘
┠─────［END］