js猜数字大小

var countDownNum=7
        var randomNum=Math.ceil(Math.random()*100)
        function divine(event){
            var numVal=document.getElementById("number")
            var warn=document.getElementById("warnTitle")
            var countNum=document.getElementById("count")
            if(event.keyCode==13){
                console.log("sadas")
                if(1<=numVal.value&&numVal.value<=100){
                    warn.innerHTML=""
                    countNum--;
                    if(countNum>0){
                        if(randomNum>numVal){
                            countNum.innerHTML="<p>你输入的值<text style='color=\"red\"'>小了</text>你还有<text style='color=\"red\"'>"+countDownNum+"</text>此机会</p>"
                        }else if(randomNum==numVal){
                            countNum.innerHTML="恭喜你，猜对了"
                        }else{
                            countNum.innerHTML="<p>你输入的值<text style='color=\"red\"'>大了</text>你还有<text style='color=\"red\"'>"+countDownNum+"</text>此机会</p>"
                        }
                    }else{
                        countNum.innerHTML="你没机会了哦！"
                    }
                }else{
                    countNum--;
                    warn.innerHTML="请输入1到100之间的值"
                    countNum.innerHTML="你还有"+countNum+"此机会"
                    numVal.value=" "
                }
            }else{
                numVal.value=numVal.value.replace(/\D/g,'')
                if(numVal==""){
                    numVal.value=" "
                }
            }
        }