In any case, big breakthroughs don’t come about when providers play it Harmless; experimentation is needed to arrive at lofty enterprise aims. If nicely-intentioned, failures frequently develop into valuable classes. 上面是取色环。外面的圈，拖动可以改变色相，中间的方框可以改变明度和饱和度。 SAI1:                                     https://peterj802eed3.thenerdsblog.com/profile