猜数字游戏程序设计

脚本说明:

第一步:把如下代码加入<head>区域中

var js_mult1=3141

var js_mult2=5821

var js_m1=100000000

var js_m2=10000

var js_iseed=0

var js_iseed1=0

var js_iseed2=0

function random(n)

{

if (js_iseed == 0)

{

now = new Date()

js_iseed = now.getHours() + now.getMinutes() * 60

+ now.getSeconds() * 3600

}

js_iseed1 = js_iseed / js_m2

js_iseed2 = js_iseed % js_m2

var tmp = (((js_iseed2 * js_mult1 + js_iseed1 * js_mult2) % js_m2) *

js_m2 + (js_iseed2 * js_mult2)) % js_m1

js_iseed = (tmp + 1) % js_m1

return (Math.floor((js_iseed/js_m1) * n))

}

var myNumber = 0

var nGuesses = 0

function guessnum()

{

var response

var num = parseInt(document.forms[0].guess.value)

document.forms[0].guess.value = num // visual feedback in case of NaN

nGuesses++ // increase the guess count

response = "哦，你猜的数 "

if (num < myNumber) response = response + "太小了"

if (num > myNumber) response = response + "太大了"

if (num == myNumber)

{

response = response + "对了！！你猜到我了！"

nGuesses = 0

myNumber = random(100)+1

}

document.forms[1].result.value=response

document.forms[1].guesses.value=nGuesses

document.forms[0].guess.focus()

document.forms[0].guess.select()

return true

}

function giveup()

{

var response

nGuesses = 0

response = "我的数字是" + myNumber +". 想猜我的新数吗？"

myNumber = random(100)+1

document.forms[1].result.value=response

document.forms[1].guesses.value=nGuesses

document.forms[0].guess.focus()

document.forms[0].guess.select()

}

</SCRIPT>

我手中有一个数，它的范围在1~100之间，你能猜到它是几吗？</font></b><font size="4">

</font>

myNumber = random(100)+1

nGuesses = 0

</SCRIPT>

填入你猜的数: <INPUT TYPE="text" NAME="guess" SIZE=5>

</FORM>

<FORM>

你已猜了: <INPUT TYPE="text" NAME="guesses" SIZE=3>次

提示信息: <INPUT TYPE="text" NAME="result" SIZE=35>

</FORM>

第二步:把<body>区域中的内容改为: