Home > Developer > Web Develop
<! DOCTYPE html>
<meta charset= "UTF-8" >
<title> Development pages need to scale to calculate the width of the high-worth fast calculator </title>
<body>
<p id= "Jieguo" ></p>
<script type= "Text/javascript" >
window.onload = function () {
var x = window.prompt (' Please enter the expected length is how many px ');
document.getElementById (' Jieguo '). InnerHTML = Math.Round (192 * x/273) + "px";
//Formula: The width-height ratio is: 192/273 So, when you set the height of another set of scale values, you get a wide value. Changing the formula by 192 (representing the width) and 273 (representing the height) is a high value.
}
</script>
</body>
js-self-made speed-up gadget: A fast calculator that requires a proportional calculation of the wide and high values when developing pages
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