摇奖后,那些数字会向下一直滚动,最后再慢慢出现结果,这种摇奖怎么做?
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PF橘子66
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有ab两个点,两点之间有条线,a点固定不动,b点可以移动到任意位置,b点移动时需要设置线的长度,这个怎么做
有ab两个点,两点之间有条线,a点固定不动,b点可以移动到任意位置,b点移动时需要设置线的长度,这个怎么做?