复制代码代码如下 :
<html>
<body>
<canvas id = "canvas"style = "배경색 : #000;"/>
<cript>
함수 위치 (x, y) {
this.x = x;
this.y = y;
}
var canvas = document.getElementById ( 'canvas'),
ctx = canvas.getContext ( '2d');
너비 = canvas.width,
높이 = canvas.height;
ctx.fillstyle = "#ff0000";
ctx.font = "20px arial";
ctx.filltext ( "妈妈", 10,50);
var pixs = ctx.getImageData (0,0, 너비, 높이) .Data;
var pixels = new Array ();
for (var i = 0; i <pixs.length; i+= 4)
{
var r = pixs [i],
g = pixs [i+1],
b = pixs [i+2],
a = pixs [i+3];
if (r! = 0 || g! = 0 || b! = 0) {
var x = i%400;
var y = i/400;
pixels.push (새 위치 (x, y));
}
}
</스크립트>
</body>
</html>