用js实现纳税问题

<script>

        //console.log()

        //prompt 带输入框的警告框

        var input = prompt("请输入你的工资:")

        console.log(input) //"10000"  数字字符串

        input=input*1// 把数字字符串转化成数字

        console.log(input)

        //计算五险一金

        var wuxian = 7662*0.08+7662*0.02+7662*0.005+7662*0.12

        //计算应纳所得税额

        var yingnashui = input - wuxian -3500

        //个税

        var geshui =0

        if(yingnashui<=1500){

            geshui=yingnashui*0.03-0

        }else if(yingnashui>1500&&yingnashui<=4500){

            geshui=yingnashui * 0.1-105

        } else if(yingnashui>4500&&yingnashui<=9000){

            geshui = yingnashui*0.2-555

        }else if(yingnashui>9000&&yingnashui<=35000){

            geshui = yingnashui * 0.25-1005

        }

        console.log(geshui)

    </script>