very good, there is a small place

代码说明：

非常好, 有一个小地方要加上判段, 就是 "双3" , 两排交错的双 3, 就应该可以结束了. 或一排已经有 4颗而两头又是空的,这时也可宣告胜方,而不是要下满5颗棋才宣告那方胜. 这个代码可当窗体画线画圆很好的示例代码,特加精品.-very good, there is a small place- to add, is the "double 3", two rows of staggered two-three, it should be ended. or have a row of four and two are empty, then can be declared the winner. and not under-five game before declaring it Sheng Fang. This code can be when Circle Line Form painting good example code, grossing- up products.