Question

我需要打印表格左侧的值，如下所示：

我知道如何输入变量和文本，只是不确定在何处插入代码以及如何正确定位。

 <html>
<head>
<title></title>

<script type="text/javascript">

 function fixVal(value,numberOfCharacters,numberOfDecimals,padCharacter) { 
    var i, stringObject, stringLength, numberToPad;            

    value = value * Math.pow(10,numberOfDecimals);                 
    value = Math.round(value);                                   
    stringObject = new String(value);                            
    stringLength = stringObject.length;                          
    while(stringLength < numberOfDecimals + 1) {                     
        stringObject = "0"+stringObject;                    
        stringLength = stringLength+1;                      
    }

    if(numberOfDecimals > 0) {                     
        stringObject = stringObject.substring(0,stringLength-numberOfDecimals)+"."+
        stringObject.substring(stringLength-numberOfDecimals,stringLength);
    }

    if (stringObject.length < numberOfCharacters && numberOfCharacters>0) {
        numberToPad=numberOfCharacters-stringObject.length;      
        for (i=0; i<numberToPad; i=i+1) {
            stringObject=padCharacter+stringObject;
        }
    }

    return stringObject;                                      
}

function buildTable() {

    var amount = parseFloat(document.getElementById("loanAmt").value );
    var monthly = parseInt(document.getElementById("monthlyPay").value );
    var rate = parseFloat(document.getElementById("intRte").value );

    rate = rate / 100 / 12;

    var msg = "<table id='tablefont' border='3' width='65%'>";
    msg += "<tr>";
    msg += "<td>Month</td>";
    msg += "<td>Principal Paid</td>";
    msg += "<td>Interest Paid</td>";
    msg += "<td>Loan Balance</td>";
    msg += "</tr>";

    newPrincipal=amount;
    var m = 1;   //months

    while ( amount > 0 ) {
        var interest = amount * rate;
        var principal = monthly - interest;

        if (principal > amount) {
            principal = amount;
            amount = 0.0;
        } else {
            amount -= principal;
        }

        msg += "<tr><td align='left' bgcolor='pink'>"+m+"</td> \
                <td align='left' bgcolor='pink'>$"+fixVal(principal,0,2,' ')+"</td> \
                <td align='left' bgcolor='pink'>$"+fixVal(interest,0,2,' ')+"</td> \
                <td align='left' bgcolor='pink'>$"+fixVal(amount,0,2,' ')+"</td></tr>";

        m++;
    }


    msg += "</table>";

    document.getElementById("results").innerHTML = msg;


}


</script>

<style type="text/css">

body {
    background: black;
    font-family: arial;
    font-weight: bold;
}

#contentwrap {
    width: 700px;
    margin: 40px auto 0px auto;
    background: #FFFFCC;
    text-align: center;
    border: 6px red solid;
    border-radius: 10px;
    padding: 40px;
}

#tablewrap {
    background-color: lightblue;
    border: 10px pink solid;
}

#tablefont {
    font-weight: bold;
    text-align: center;
}

table {
    border: 5px blue solid;
    background-color: #FFFFCC;
}

#header {
    text-align: center;
    font-size: 2.5em;
    text-shadow: yellow 3px 3px;
    margin-bottom: 18px;
    color: red;
}

#button {
    background: blue;
    color: white;
    cursor: pointer;
    padding: 5px 0px 5px 0px;
    border: 1px solid red;
    border-radius: 25px;
    width: 150px;
}

.contentTitles {
    color: green;
    font-weight: bold;
}

.style {
    background: lightblue;
    font-family: comic sans ms;
    border: 6px blue double;
    color: green;
    font-weight: bold;
}

</style>

</head>

<body>

<div id="contentwrap">

<div id="header">Javascript Loan Calculator</div>

<form>

<div class="contentTitles">Enter Loan Amount<br />
<input type="text" id="loanAmt" class="style"><p />

Interest Rate (%)<br />
<input type="text" id="intRte" class="style"><p /> 

Monthly Payment Amount<br />
<input type="text" id="monthlyPay" class="style"><p />

<div style="margin-top:20px;">
<input type="button" value="Process Data" id="button" onClick="buildTable()">
</div>

</form>

<center>
<div id="results" style="margin-top:20px;"></div>
</center>


</div> <!-- ends div#contentwrap -->

</body>
</html>

Answer 1

你可以这样做。
编辑：我认为最好在结果的同时准备概述（因此将buildTable重命名为buildResults：

function buildResults() {

（与当前构建表相同）PLUS：

    var msg2 = "";
    msg2 += "Loan Amount: " + document.getElementById("loanAmt").value + "<br>";
    msg2 += "Annual Interest: " + document.getElementById("intRte").value + "<br>";
    msg2 += "Monthly Payment: " + document.getElementById("monthlyPay").value + "<br>";

    document.getElementById("overview").innerHTML = msg2;

更改按钮定义：

<input type="button" value="Process Data" id="button" onClick="buildResults();">

添加一个div并将其浮动到具有居中表的div的左侧：

<div id="overview" style="margin-top:20px;margin-right:20px;float:left;align:left;"></div>

当然，还有一些格式和清理可以让它与你想要的完全匹配。

如何在表格左侧打印值？

1 个答案: