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// response time test, created by Jasper van Zandbeek
// e-mail: jasperz@stack.urc.tue.nl
var startTime=new Date();
var endTime=new Date();
var startPressed=false;
var bgChangeStarted=false;
var maxWait=20;
var timerID;
function startTest()
{
document.bgColor=document.response.bgColorChange.options[document.response.bgColorChange.selectedIndex].text;
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startTime=new Date();
}
function remark(responseTime)
{
var responseString="";
if (responseTime > 0 && responseTime <0.01)
responseString="你还是人吗？"
if (responseTime >.01 && responseTime <.05 )
responseString="你快如闪电啊！";
if (responseTime >= 0.05 && responseTime <.10)
responseString="干得漂亮";
if (responseTime >= 0.10 && responseTime < 0.20)
responseString="不错！";
if (responseTime >=0.20 && responseTime < 0.30)
responseString="还可以更好...";
if (responseTime >=0.30 && responseTime < 0.60)
responseString="多加练习！";
if (responseTime >=0.60 && responseTime < 1)
responseString="喝醉酒了？";
if (responseTime >=1)
responseString="我想你是睡着了！";
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function stopTest()
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endTime=new Date();
var responseTime=(endTime.getTime()-startTime.getTime())/1000;
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alert("你的反应时间是：" + responseTime + " 秒 " + "\n" + remark(responseTime));
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alert("先按“开始”键启动测试");
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else
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startPressed=false;
alert("骗子！你提早按结束键了！");
}
}
}
var randMULTIPLIER=0x015a4e35;
var randINCREMENT=1;
var today=new Date();
var randSeed=today.getSeconds();
function randNumber()
{
randSeed = (randMULTIPLIER * randSeed + randINCREMENT) % (1 << 31);
return((randSeed >> 15) & 0x7fff) / 32767;
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function startit()
{
if(startPressed)
{
alert("已经开始了，按“结束”键结束");
return;
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startPressed=true;
timerID=setTimeout('startTest()', 6000*randNumber());
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<body>
<P align=center><STRONG><FONT face=宋体 color=#cc33cc
size=5>轻松一刻---反应速度大比拼</FONT></STRONG></P>
<P align=center> </P>
<P align=center><STRONG><FONT
face=宋体>先按“开始”键启动，然后等背景色转变，只要它一变，立即点“结束”键。</FONT></STRONG></P>
<P align=center><STRONG><FONT face=宋体>小心点，这个测试比任何药物更能令你上瘾，你试过就会明白了</FONT><FONT
face=新宋体>！
<FORM name=response>
<DIV align=center>
<CENTER>
<P><STRONG><SMALL><FONT color=#993300>将背景色转变为：</FONT><FONT color=#ff8000>
</FONT></SMALL></STRONG><SELECT size=1 name=bgColorChange> <OPTION
selected>deeppink</OPTION> <OPTION>crimson</OPTION> <OPTION>darkkhaki</OPTION>
<OPTION>darkorchid</OPTION> <OPTION>coral</OPTION> <OPTION>chocolate</OPTION>
<OPTION>tomato</OPTION> <OPTION>darkslategray</OPTION>
<OPTION>limegreen</OPTION> <OPTION>cornflowerblue</OPTION>
<OPTION>darkolivegreen</OPTION></SELECT> <INPUT onclick=startit() type=button value=开始> <INPUT onmousedown=stopTest() type=button value=结束>
</P></CENTER></DIV></FORM><BR>
</HTML>
【轻松一刻－－反应速度大比拼】
