如何解决如何将表单中的输入显示到html中的另一页上，同时还处理该数据以使其成为椭圆形
我正在构建html / JavaScript页面，我要做的最后一件事是能够在inputform页面上显示从用户那里获取的输入，并在结果页面上显示它们，在该页面上还显示构造的椭圆。 。 这是输入表格
<!DOCTYPE html>
<html>
<head>
<title>Ellipse Parameters</title>
<meta charset="utf-8" />
<script src="JSSourceFile.js"></script>
<link rel="stylesheet" href="StyleSheet.css" type="text/css" />
<style>
fieldset {
font-family: 'Comic Sans MS';
font-size: 16px;
color: cyan;
}
</style>
</head>
<body>
<header>
<h1 style="color:cornflowerblue;">Ellipse Generator 488!!</h1>
</header>
<nav>
<ul>
<li><b><a href="index.html">Home Page</a></b></li>
<li><b><a href="inputfrm.html">Ellipse Generator</a></b></li>
</ul>
</nav>
<div id="maincontent">
<section>
<h2 style="font-size:20px; color:cyan;">Ellipse Specifications:</h2>
</section>
<section>
<form action="response.html" method="get">
<fieldset>
<label for="num1">Major-Axis Coordinate:</label>
<input type="text" name="num1" />
<label for="num2">Minor-Axis Coordinate:</label>
<input type="text" name="num2" />
<button type="submit" onclick='document.getElementsById("result").innerHTML
= myFunction(document.getElementsByName("num1").value,document.getElementsByName("num2").value'>
Submit
</button>
</fieldset>
</form>
</section>
</div>
<footer>
Footer: <a href="https://www.merriam-webster.com/dictionary/ellipse">More Ellipse Information </a>
</footer>
</body>
</html>
这是结果页：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Results</title>
<link rel="stylesheet" href="StyleSheet.css" type="text/css" />
<script src="JSSourceFile.js"></script>
</head>
<body>
<header>
<h1 style="color:white;">Ellipse Generator 888!!</h1>
</header>
<nav>
<ul>
<li><b><a href="index.html">Home Page</a></b></li>
<li><b><a href="inputfrm.html">Ellipse Generator</a></b></li>
</ul>
</nav>
<div id="maincontent">
<section>
<h2 style="font-size:20px; color:cyan;">Ellipse Result:</h2>
<p style = "font-size:15px;">id="major"> Major-Axis Coordinate</p>
<canvas id="myCanvas" width="1200" height="700"></canvas>
</section>
</div>
</body>
</html>
这是我的JavaScript文件。我开始编写显示函数，但是不确定如何用一个按钮调用2个函数。
window.onload = function(){
let url = window.location["href"];
let params = (new URL(url)).searchParams;
let x = parseInt(params.get("num1"));
let y = parseInt(params.get("num2"));
var canvas = document.getElementById('myCanvas');
var ctx = canvas.getContext('2d');
function drawEllipse(ctx,x,y,w,h) {
var kappa = .5522848,ox = (w / 2) * kappa,// control point offset horizontal
oy = (h / 2) * kappa,// control point offset vertical
xe = x + w,// x-end
ye = y + h,// y-end
xm = x + w / 2,// x-middle
ym = y + h / 2; // y-middle
ctx.beginPath();
ctx.moveTo(x,ym);
ctx.bezierCurveTo(x,ym - oy,xm - ox,xm,y);
ctx.bezierCurveTo(xm + ox,xe,ym);
ctx.bezierCurveTo(xe,ym + oy,xm + ox,ye,ye);
ctx.bezierCurveTo(xm - ox,ym);
//ctx.closePath(); // not used correctly,see comments (use to close off open path)
ctx.stroke();
}
drawEllipse(ctx,400,y);
}
function showParams(e) {
var majorAxis = document.getElementsByName("num1").value;
var minorAxis = documnet.getElementsByName("num2").value;
document.getElementById("show").innerText = majorAxis + " " + minorAxis;
}
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