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Home > Web Front-end > JS Tutorial > How to draw squares in javascript

How to draw squares in javascript

藏色散人
Release： 2023-01-04 09:35:14
Original
2299 people have browsed it

How to draw squares in javascript: first create an HTML sample file; then add a canvas tag to the body; then add a script tag to the head for entering javascript code; finally draw the square through the draw method. Can.

How to draw squares in javascript

The operating environment of this article: windows7 system, javascript1.8.5&&html5 version, Dell G3 computer.

Insert javascript into html to draw a rectangle

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<!DOCTYPE <!DOCTYPE html>

<html>

<head>

<meta charset="utf-8"/>

<title>canvas元素示例</title>

<script>

function draw(id)

{

var canvas = document.getElementById(id);

if(canvas == null)

return false;

var context = canvas.getContext(&#39;2d&#39;);

context.fillStyle = "#eeefff";

context.fillRect(0,0,400,300);

context.fillStyle = "green";

context.strokeStyle = "red";

context.lineWidth = 1;

context.fillRect(50,50,100,100);

context.strokeRect(50,50,100,100);

}

</script>

</head>

<body οnlοad="draw(&#39;canvas&#39;);">

<h1>canvas中画矩形</h1>

<canvas id="canvas" width="400" height="300"/>

</body>

</html>

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How to draw squares in javascript

[Recommended learning: javascript advanced tutorial]

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