if (board[pos].suit != "x")
{
return;
}
这个if语句的用意是什么?
board数组的定义是:
//array for board contents
board = new Array(26);
for (i = 1; i < 26; i++)
{
board[i] = new Card(0, "x");
obj = document.getElementById("card" + i);
obj.src = "../image/blank.jpg";
obj.onclick = PlaceCard;
}
Card及fname函数:
function fname()
{
return "../image/" + this.num + this.suit + ".jpg";
}
//constructor for card objects
function Card(num,suit)
{
this.num = num;
this.suit = suit;
this.fname = fname;
}