body里的内容
<div class="box">
用户:<span id="yh"></span><br/>
电脑:<span id="dn"></span><br/>
本剧结果:<span id="rese"></span><br/>
</div>
script的内容
<script type="text/javascript">
var paly= window.prompt("请出拳;0.剪刀 1.石头 2.布");
var conter =Math.floor(Math.random()*3);
var yh = document.getElementById("yh");
var dn = document.getElementById("dn");
var rese = document.getElementById("rese");
yh.innerHTML=paly;
dn.innerHTML=conter;
console.log(conter);
if(isNaN(paly)){
alert("请输入数字")
}else if(paly>2 || paly<0){
alert("只能输入0,1,2三个数字只能选一个")
}else{
if((paly==0 && conter==2) || (paly==1 && conter==0) || (paly==2 && conter==1)){
alert("恭喜你赢了")
rese.innerHTML="你赢了"
}
else if((paly==0 && conter==1) || (paly==1 && conter==2) || (paly==2 &&conter==0)){
alert("很遗憾,你输了")
rese.innerHTML="你输了"
}else{
alert("棋逢对手,平局!")
rese.innerHTML="平局"
}
}
</script>
完结