function calc() { var aa = document.getElementById("aa").value; var bb = document.getElementById("bb").value; var cc = document.getElementById("cc").value; var time = 1; var dd = document.getElementById("dd").value / 365; first = 1 + ((bb / 100) / cc); second = cc * time; result = aa * Math.pow(first, second); bb_earn = aa * Math.pow(first, second) - aa; final = Number(aa) + Number(bb_earn); var r = ""; var lastTotal = aa; for (var i = 0; i < dd; i++) { var newTotal = Number(lastTotal) + Number(bb_earn); zz = +newTotal; lastTotal = newTotal; r += i + 1 + ") " + aa + "---" + zz + "---" + final + "<br/>"; r += ""; } document.getElementById("table").innerHTML += r;}<div> A - <input type="text" id="aa" value="12000" /></div><div> B - <input type="text" id="bb" value="20" /></div><div> C - <input type="text" id="cc" value="1" /></div><div> D - <input type="text" id="dd" value="1825" /></div><div> <input type="button" value="Get" onclick="calc();" /></div><br/><br/><div id="table"></div>我试图循环默认值，默认值的 20% 和默认值的总和加上默认值的 20%。在下一行，默认值应该是前一个最终列的总和值。我尝试了上面的 javascript 计算来达到预期的结果。但是，我搞砸了..输出结果为：1) 12000---14400---144002) 12000---16800---144003) 12000---19200---144004) 12000---21600---144005) 12000---24000---14400但是，输出应该是：1) 12000---2400---144002) 14400---2880---172803) 17280---3456---207364) 20736---4147.20---24883.205) 24883.20---4976.60---29859.80
2 回答
饮歌长啸
TA贡献1951条经验 获得超3个赞
根据您编写的内容，很难弄清楚您要使用代码实现什么目标。如果您只想取之前的总数并每次增加 20%，则可以写得更简单。您没有解释time变量的作用以及#cc元素的作用。
无论如何，这应该输出您期望的结果。
function calc() {
var aa = document.getElementById("aa").value;
var bb = document.getElementById("bb").value;
var cc = document.getElementById("cc").value;
var dd = document.getElementById("dd").value / 365;
var r = "";
var lastTotal = Number(aa);
for (var i = 0; i < dd; i++) {
var ratio = ((bb / 100) / cc);
var addition = lastTotal * ratio;
var newTotal = lastTotal + addition;
r += i + 1 + ") " + lastTotal + "---" + addition + "---" + newTotal + "<br/>";
r += "";
lastTotal = newTotal;
}
document.getElementById("table").innerHTML += r;
}
<div> A - <input type="text" id="aa" value="12000" /></div>
<div> B - <input type="text" id="bb" value="20" /></div>
<div> C - <input type="text" id="cc" value="1" /></div>
<div> D - <input type="text" id="dd" value="1825" /></div>
<div> <input type="button" value="Get" onclick="calc();" /></div>
<br/><br/>
<div id="table"></div>
BIG阳
TA贡献1859条经验 获得超6个赞
for next 循环没有任何问题但我想你的公式一切都错了。
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
</head>
<body>
<div> A - <input type="text" id="aa" value="12000" /></div>
<div> B - <input type="text" id="bb" value="20" /></div>
<div> C - <input type="text" id="cc" value="1" /></div>
<div> D - <input type="text" id="dd" value="1825" /></div>
<div> <input type="button" value="Get" onclick="calc();" /></div>
<br/><br/>
<div id="table"></div>
<script>
function calc(){
var aa = document.getElementById("aa").value*1.0;//ensure that we use numbers and not strings
var bb = document.getElementById("bb").value*1.0;
var cc = document.getElementById("cc").value*1.0;
var time = 1.0;
var dd = document.getElementById("dd").value*1 / 365;
first = 1 + ((bb / 100) / cc);//first = 1.2 bb 20 ,cc 1
second = cc * time; // 1*1=1
// i guess here you make a mistake or choose the wrong test datas
var fact=Math.pow(first, second) // fact = 1.2^1
result = aa * fact; //result 14400 = 12000*1.2;
bb_earn = aa * fact - aa; // bb_earn = 1.2 * 12000 -12000 = .2*12000 =2400
final = aa + bb_earn; //final =12000 + 2400 = again 14400
var zz=0;
var r = "";
var lastTotal = aa;
for (var i = 0; i < dd; i++) {
// as you could see thére is by this numbers NO chance to get something like -4147.20
// there are NO AFTER DIGITS in this calculation
//based on the fact result not possible
var newTotal = Number(lastTotal) + Number(bb_earn);
zz = newTotal;
lastTotal = newTotal;
r += i + 1 + ") " + aa + "---" + zz + "---" + final + "<br/>";
r += "";
}
document.getElementById("table").innerHTML += r;
}
</script>
</body>
</html>
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