21点游戏

下面框中为脚本显示区

脚本说明：
把如下代码加入<body>区域中:
<SCRIPT LANGUAGE="JavaScript">

<!-- Hide from non-JavaScript browsers

function random(maxValue)

{

day = new Date();

hour = day.getHours();

min = day.getMinutes();

sec = day.getSeconds();

return (((hour + 1) * (min + 1) * sec) % maxValue) + 1;

}

function pickSuit()

{

suit = random(4);

if(suit == 1)

return "Spades";

if(suit == 2)

return "Clubs";

if(suit == 3)

return "Diamonds";

return "Hearts";

}

function cardName(card)

{

if(card == 1)

return "Ace";

if(card == 11)

return "Jack";

if(card == 12)

return "Queen";

if(card == 13)

return "King";

return "" + card;

}

function cardValue(card)

{

if(card == 1)

return 11;

if(card > 10)

return 10;

return card;

}

function PickACard(strWho)

{

card = random(13);

suit = pickSuit();

//alert(strWho + " picked the " + cardName(card) + " of " + suit);

return cardValue(card);

}

function NewHand(form)

{

form.dealer.value = 0;

form.you.value = 0;

form.dealer.value = eval(form.dealer.value) + PickACard("Dealer");

form.you.value = eval(form.you.value) + PickACard("You");

}

function Dealer(form)

{

while(form.dealer.value < 17)

{

form.dealer.value = eval(form.dealer.value) + PickACard("Dealer");

}

function User(form)

{

form.you.value = eval(form.you.value) + PickACard("You");

if(form.you.value > 21)

{

alert("不好意思，你爆了!");

}

function LookAtHands(form)

{

if(form.dealer.value > 21)

{

alert("庄家爆了，你赢!");

}

else   if(form.you.value > form.dealer.value)

{

alert("你赢了!");

}

else

if(form.dealer.value == form.you.value)

{

alert("Push!");

}

else

{

alert("庄家赢了!");

}

//-->

</SCRIPT>
<FORM>
<TABLE BORDER=3>
<TR>
  <TD>庄家有</TD>
  <TD><INPUT TYPE=TEXT NAME=dealer>点</TD>
</TR>
<TR> <TD>你有</TD>
  <TD><INPUT TYPE=TEXT NAME=you>点</TD>
</TR>
</TABLE>
<INPUT TYPE=BUTTON VALUE="再要一张" onClick=User(this.form)>
<INPUT TYPE=BUTTON VALUE="亮牌" onClick="Dealer(this.form);LookAtHands(this.form);">
<INPUT TYPE=BUTTON VALUE="重新发牌" onClick=NewHand(this.form)>