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我一直在尝试为类做这件事,但我似乎无法让它工作。我需要有单选按钮来选择4个硬币中的一个。 Q,d,N,P。然后选择一个值为10的选择框。当我改变选择时,Java需要添加选定数量的硬币并显示总计,并显示许多硬币。我有添加部分,但是当我添加循环时,它会中断项目的添加部分。我不知道我的循环是否正确,但现在我想知道为什么我的代码在添加循环时中断?代码我到目前为止。JavaScript代码与循环中断
<script type="text/javascript">
function doCalculate() {
//Variable for calculation
Q = document.getElementById('txtMoney').value;
//If statements for selecting the correct radiobutton
if (document.getElementById('rbQ').checked) {
answer = Q * .25;
}
if (document.getElementById('rbD').checked) {
answer = Q * .10;
}
if (document.getElementById('rbN').checked) {
answer = Q * .05;
}
if (document.getElementById('rbP').checked) {
answer = Q * .01;
}
//show results
document.getElementById('results').innerHTML = "$ " + answer + "<br>Dollars and Cents"
//variables for coins using ID txtMoney from Select
loopCounter = document.getElementById('txtMoney').value
//If radio of coin is checked and loopcounter is higher then 0 run for loop
if (document.getElementById('rbQ').checked && loopCounter > 0;) {
document.getElementById('quarter').src = "quarter.gif";
}
resultsString = ""
//for loop to count via select box value, and display that many images
// of which ever coins radio is checked.
for (x = 0; x < loopCounter; x++) {
resultsString = loopCounter + quarter.gif
//write to results2 via innerHTML
document.getElementById('results2').innerHTML = resultsString;
}
}
</script>
哪里是Java代码? – Teemu 2015-03-03 09:02:00
您在初始化'loopCounter'后缺少分号。 'document.getElementById('results)''后面还有一个。乍一看还有其他一些......并且在if语句之一中有一个不需要的分号。同时请注意JavaScript!= Java – treegarden 2015-03-03 09:05:51
您可以发布随附的HTML吗? – rmorrin 2015-03-03 09:08:16