canvas繪製笑臉程式碼例項
分享一段程式碼例項,它利用canvas實現了繪製簡單笑臉的功能。
程式碼例項如下:
[HTML] 純文字檢視 複製程式碼執行程式碼<!DOCTYPE html> <html> <head> <meta charset=" utf-8"> <meta name="author" content="http://www.softwhy.com/" /> <title>螞蟻部落</title> <style> canvas { border:1px solid red; } </style> <script> window.onload = function () { var canvas = document.getElementById('canvas'); if (canvas.getContext) { var ctx = canvas.getContext('2d'); ctx.beginPath(); ctx.arc(75, 75, 50, 0, Math.PI * 2, true); // 繪製 ctx.moveTo(110, 75); ctx.arc(75, 75, 35, 0, Math.PI, false); // 口(順時針) ctx.moveTo(65, 65); ctx.arc(60, 65, 5, 0, Math.PI * 2, true); // 左眼 ctx.moveTo(95, 65); ctx.arc(90, 65, 5, 0, Math.PI * 2, true); // 右眼 ctx.stroke(); } } </script> </head> <body> <canvas id="canvas"></canvas> </body> </html>
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