//绘制连线颜色
public void drawLineColor()
{
for (int i = 0; i < lineGameObjectlist.Count; ++i)
{
Color temp = toLineColor(magic.getLineState(i));
lineGameObjectlist[i].GetComponent <LineRenderer>().startColor = temp;
lineGameObjectlist[i].GetComponent <LineRenderer>().endColor = temp;
}
}