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猜数字游戏,您可以先修改部分代码再运行.
<HTML><HEAD> <SCRIPT LANGUAGE="JavaScript"> 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 = "你猜的数字" if (num < myNumber) response = response + "小了" if (num > myNumber) response = response + "大了" if (num == myNumber) { response = response + "猜对了!! 继续下一个数字吧." 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 = "这个数字是 " + myNumber +"。别灰心，猜下一个数字吧" 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></HEAD> <BODY bgcolor="ffffff" onLoad="document.forms[0].guess.focus(); document.forms[0].guess.select()"> <center> <H2>猜数字游戏</H2><p><font size="2"><b>数字是1-100内的数字,随机显示，猜猜看</b></font><p> <SCRIPT> myNumber = random(100)+1 nGuesses = 0 </SCRIPT> <FORM onSubmit="guessnum(); return false"> 你猜的数字是: <INPUT TYPE="text" NAME="guess" SIZE=5> <INPUT TYPE="button" VALUE=" 猜猜... " onClick="guessnum()"> <INPUT TYPE="button" VALUE=" 放弃 " onClick="giveup()"> </FORM> <FORM><PRE> 次数: <INPUT TYPE="text" NAME="guesses" SIZE=3> 信息提示: <INPUT TYPE="text" NAME="result" SIZE=44> </PRE></FORM>