Canvas Text
Canvas Text （画布文字）
HTML5 canvas allows creating text using different font and text properties presented below:
Properties and Methods
Properties and Methods （属性和方法）
| Property | Description |
|---|---|
| font | It returns the current font settings and can be set to change the font. |
| textAlign | It returns the current text alignment settings and can be set to change the alignment. The property has the following values: start, end, left, right, and center. |
| textBaseline | It returns the current baseline alignment settings and can be set to change the baseline alignment. The property has the following values: top, hanging, middle, alphabetic, ideographic, and bottom. |
| fillText(text, x, y) | It draws a filled text at the position indicated by the given coordinates x and y. |
| strokeText(text, x, y) | It strokes the text at the position indicated by the given coordinates x and y. |
Example of the fillText() property:
<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
</head>
<body>
<canvas id="exampleCanvas" width="300" height="150" style="border:1px solid #d3d3d3;">
Your browser does not support the canvas element.
（您的浏览器不支持画布元素。）
</canvas>
<script>
var canvas = document.getElementById("exampleCanvas");
var ctx = canvas.getContext("2d");
ctx.font = "30px Arial";
ctx.fillText("Hello World", 70, 80);
</script>
</body>
</html>
Example of the textStroke() property:
<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
</head>
<body>
<canvas id="exampleCanvas" width="250" height="150" style="border:1px solid #d3d3d3;">
Your browser does not support the canvas element.
（您的浏览器不支持画布元素。）
</canvas>
<script>
var canvas = document.getElementById("exampleCanvas");
var ctx = canvas.getContext("2d");
ctx.font = "27px Arial";
ctx.strokeText("Canvas text", 40, 70);
</script>
</body>
</html>
Example of adding color and centering text:
<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
</head>
<body>
<canvas id="exampleCanvas" width="400" height="250" style="border:1px solid #d3d3d3;">
Your browser does not support the canvas element.
（您的浏览器不支持画布元素。）
</canvas>
<script>
var canvas = document.getElementById("exampleCanvas");
var ctx = canvas.getContext("2d");
ctx.font = "40px Comic Sans MS";
ctx.fillStyle = "red";
ctx.textAlign = "center";
ctx.fillText("Canvas Text", canvas.width / 2, canvas.height / 2);
</script>
</body>
</html>