p;     //return false;             }             return false;                       }           private bool 连通判断()         {             if (x1 == x2)//这里很好理解,当两点x轴相同,表明y轴垂直连接             {                 if (Y直连(y1, y2, x1)==true)//两点垂直的话                 {                     啥方式呀 = 连线方式.直连;//枚举方式为直连                     return true;//方法返回一个“真”值                 }             }             if (y1 == y2)//同理,x轴水平相连             {                 if (X直连(x1, x2, y1)==true)                 {                     啥方式呀 = 连线方式.直连;                     return true;                 }             }             if (一折连(x1, y1, x2, y2) == true)//满足一折连条件             {                 啥方式呀 = 连线方式.一折;//枚举方式为“一折”                 return true;//方法返回“真”             }             if (二折连(x1, y1, x2, y2) == true)//同理满足二折条件             {                 啥方式呀 = 连线方式.二折;   &nb
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