试设计一种彩灯控制器控制8盏灯。该彩灯控制器有4种自动切换的花样。第一种花样为彩灯从右到左，然后从左到右逐次点亮，全灭全亮；第二种花样为彩灯两边同时亮一个逐次向中间移动再散开；第三种花样为彩灯两边同时亮两个逐次向中间移动再散开；第四种花样为彩灯两边同时亮三个，然后四亮四灭，四灭四亮，最后一灭一亮。四个花样自动变换，重复以上过程。输入时钟频率为500Hz，灯亮的时间在1—4秒之间，可以自由控制。电路中以“1”代表灯亮，以“0”代表灯灭-Try to design a lantern light controller 8. The lights automatically switch controller has four kinds of tricks. The first pattern for the lights from right to left, then from left to right successive light, Quanmie all bright　second pattern on both sides of the same time for the bright lights of a successive spread to the middle of moving again　third pattern is lantern light both sides of two successive move to the middle and then spread out　fourth pattern on both sides of the same time for the bright lights of three, then four bright 4 off, 4 off 4 on, the last one off a light. Automatically transform the four patterns, repeat the process. Input clock frequency of 500Hz, the time lights in 1-4 seconds, you can freely control. Circuit with " 1"　lights to " 0"　lamp