我正在创建一个带有JavaScript变量的Web应用程序并将它们置于数学问题中。脚本是
<HTML>
<head>
<meta name="viewport" content="initial-scale=2, user-scalable=no">
<meta name= apple-mobile-web-app-capable content= yes />
<meta name= apple-mobile-web-app-status-bar-style content= black />
<link rel="apple-touch-icon" href="https://dl.dropboxusercontent.com/u/11681462/untitled%20folder/Icon/Icon-SD-Iphone.png" />
<link rel="apple-touch-icon" sizes= 114x114 href="https://dl.dropboxusercontent.com/u/11681462/untitled%20folder/Icon/Icon-HD-Iphone.png" />
<link rel="apple-touch-icon" sizes= 72x72 href="https://dl.dropboxusercontent.com/u/11681462/untitled%20folder/Icon/Icon-SD-Ipad.png" />
<link rel="apple-touch-icon" sizes= 144x144 href="https://dl.dropboxusercontent.com/u/11681462/untitled%20folder/Icon/Icon-HD-Ipad.png" />
<Title> Diabetes Cal </Title>
<script>
function valuechanged() {
var a = document.getElementById('textA').value;
var b = document.getElementById('textB').value;
var t = document.getElementById('textX').value;
var y = document.getElementById('textY').value;
var z = document.getElementById('textZ').value;
var dec = t * 0.1;
var x = parseFloat(dec).toFixed(1);
if (+x - +y < 0) {
var c = 0;
}
else
{
c = +x - +y;
}
if (c < 0) {
var l = 0;
}
else
{
var l = c / z;
}
var d = parseFloat(l).toFixed(2);
if (a / b < 0)
{
var u = 0;
}
else
{
var u = a / b;
}
var e = parseFloat(u).toFixed(2);
document.getElementById('labelS').innerHTML = e;
document.getElementById('labelG').innerHTML = d;
document.getElementById('labelX').innerHTML =
document.getElementById('labelJ').innerHTML = +d + +e;
}
function myFunction(){
var TS=document.getElementById('textB')
var date= new Date();
var time = date.getHours();
if (time<10)
{
CR = "8";
}
else if (time<16)
{
CR = "10";
}
else if (time<20)
{
CR = "5";
}
else
{
CR = "8";
}
TS.value= CR
}
</script>
</head>
<body BGColor=orange onload="valuechanged();myFunction();" > <center><br> Bolus Wizard <br>
<div>
Bg (without Decimal)<br>
<input type="text" pattern=\d* id="textX" min="25" max="333" value="25" onchange="valuechanged();" /><br><label ID="labelX">-----</label> mmol/L<br>
</div><hr width=45% color=black size=0.5>
<div>
Carbs<br> <input type="text" pattern=\d* ID="textA" max=300 value="0" onchange="valuechanged();" /><br>
</div><hr width=45% color=black size=0.5>
<div>
Carb Ratio<br><input type="text" pattern=\d* ID="textB" value="" onchange="valuechanged();" />
</div>
<div>
Target<br><input type="text" pattern=\d* ID="textY" value="6" onchange="valuechanged();" />
</div>
<div>
Correction Factor<br><input type="text" pattern=\d* ID="textZ" value="2" onchange="valuechanged();" />
</div>
<div>
Food<br> <label ID="labelS"> ---</label> Units
</div>
<p>
<div>
Correction<br> <label ID="labelG"> ---</label> Units
</div>
<p>
<div>
You Need...<br> <label ID="labelJ"> --- </label> Units
</div>
<p>
</center>
</body>
</HTML>
我希望有人可以帮我创建textB TextY和TextZ的设置页面。它需要在不同的页面上。此Web应用程序专为Iphone和iPad设计。另外，如果无论如何都要将var CR的变量更改为设置（如文本框说早上8点，另一个说早上10点）并将其保存在设备上，是否可以将其作为答案包含在内。谢谢，你真的会帮助很多。