Question

我有以下代码。我尝试了下面的方法，但是失败了。它工作正常，并且可以准确生成结果。它是基于Java脚本的代码，但是我对Java脚本没有太多的了解。所以我需要一些帮助。我希望所有结果都将显示在输入字段中，并在我提交时将结果插入数据库。因此，谁能帮助我将结果插入mysql数据库。请参见下面的代码。

function getValues()
{
	//button click gets values from inputs
	var balance = parseFloat(document.getElementById("principal").value);
	var interestRate = 
		parseFloat(document.getElementById("interest").value/100.0);
	var terms = parseInt(document.getElementById("terms").value);
	
	//set the div string
	var div = document.getElementById("Result");
	
	//in case of a re-calc, clear out the div!
	div.innerHTML = "";
	
	//validate inputs - display error if invalid, otherwise, display table
	var balVal = validateInputs(balance);
	var intrVal = validateInputs(interestRate);

	if (balVal && intrVal)
	{
		//Returns div string if inputs are valid
		div.innerHTML += amort(balance, interestRate, terms);
	}
	else
	{
		//returns error if inputs are invalid
		div.innerHTML += "Please Check your inputs and retry - invalid values.";
	}
}

/**
 * Amort function:
 * Calculates the necessary elements of the loan using the supplied user input
 * and then displays each months updated amortization schedule on the page
*/
function amort(balance, interestRate, terms)
{
    //Calculate the per month interest rate
	var monthlyRate = interestRate/12;
	
	//Calculate the payment
    var payment = balance * (monthlyRate/(1-Math.pow(
        1+monthlyRate, -terms)));
	    
	//begin building the return string for the display of the amort table
    var result = "Loan amount: $" + balance.toFixed(2) +  "<br />" + 
        "Interest rate: " + (interestRate*100).toFixed(2) +  "%<br />" +
        "Number of months: " + terms + "<br />" +
        "Monthly payment: $" + payment.toFixed(2) + "<br />" +
        "Total paid: $" + (payment * terms).toFixed(2) + "<br /><br />";
        
    //add header row for table to return string
	result += "<table border='1'><tr><th>Month #</th><th>Balance</th>" + 
        "<th>Interest</th><th>Principal</th>";
    
    /**
     * Loop that calculates the monthly Loan amortization amounts then adds 
     * them to the return string 
     */
	for (var count = 0; count < terms; ++count)
	{ 
		//in-loop interest amount holder
		var interest = 0;
		
		//in-loop monthly principal amount holder
		var monthlyPrincipal = 0;
		
		//start a new table row on each loop iteration
		result += "<tr align=center>";
		
		//display the month number in col 1 using the loop count variable
		result += "<td>" + (count + 1) + "</td>";
		
		
		//code for displaying in loop balance
		result += "<td> $" + balance.toFixed(2) + "</td>";
		
		//calc the in-loop interest amount and display
		interest = balance * monthlyRate;
		result += "<td> $" + interest.toFixed(2) + "</td>";
		
		//calc the in-loop monthly principal and display
		monthlyPrincipal = payment - interest;
		result += "<td> $" + monthlyPrincipal.toFixed(2) + "</td>";
		
		//end the table row on each iteration of the loop	
		result += "</tr>";
		
		//update the balance for each loop iteration
		balance = balance - monthlyPrincipal;		
	}
	
	//Final piece added to return string before returning it - closes the table
    result += "</table>";
	
	//returns the concatenated string to the page
    return result;
}

function validateInputs(value)
{
	//some code here to validate inputs
	if ((value == null) || (value == ""))
	{
		return false;
	}
	else
	{
		return true;
	}
}

<html>
	<head>
		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
		<title>Loan Ammortization </title>		
		<script language="JavaScript" type="text/javascript" 
			src="amort.js"></script>	
			
		
	</head>
	<body>
		<h1>Loan Amortization Table</h1>
		
		<hr>		
		<form>
			<fieldset>
				<legend>Inputs</legend>
				<label for="principal"><b>Principal:</b></label>
				<input type="text" id="principal" />
				<br />
				<label for="interest"><b>Interest:</b></label>
				<input type="text" id="interest" />
				<br />
				<label for="terms"><b>Terms:</b></label>
				<select id="terms">
					<option value="12">12 Months</option>
					<option value="24">24 Months</option>
					<option value="36">36 Months</option>
					<option value="48">48 Months</option>
					<option value="60">60 Months</option>
            <option value="60">72 Months</option>
				</select>
				<br />
				<input type="button" value="Calculate" onClick="getValues()" />								
			</fieldset>
		</form>
		<form>
			<fieldset>
			<legend>Outputs</legend>
				<div id="Result"></div>
			</fieldset>						
		</form>		
	</body>
</html>
<script language="javascript"><!--

var wwOpenInstalled;
if (wwOpenInstalled || parent.wwOpenInstalled) {
	if (window.Event) {
		document.captureEvents (Event.MOUSEUP);
	}
	document.onmouseup = (parent.wwOpenInstalled) ? parent.wwOnMouseUp : wwOnMouseUp;
}
//--></script>

贷款摊销时间表插入到MySQL数据库

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