脚本说明:第一步:把如下代码加入<head>区域中<SCRIPT LANGUAGE="JavaScript">var js_mult1=3141var js_mult2=5821var js_m1=100000000var js_m2=10000var js_iseed=0var js_iseed1=0var js_iseed2=0function 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 = 0var nGuesses = 0function 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>
<font size="3" color="#FF0000">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><SCRIPT> myNumber = random(100)+1 nGuesses = 0</SCRIPT><FORM onSubmit="guessnum(); return false">填入你猜的数: <INPUT TYPE="text" NAME="guess" SIZE=5> <INPUT TYPE="button" VALUE=" 我来猜 " onClick="guessnum()"> <INPUT TYPE="button" VALUE=" 放弃 " onClick="giveup()"> </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:<body bgcolor="#fef4d9" onLoad="document.forms[0].guess.focus(); document.forms[0].guess.select()">
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