摘要：
Canvas 时间效果：function clockTest() { var canvas = document.getElementById('canvas'); if (!(canvas && canvas.getContext)) { return; } var ct = canvas.getContext('2d'); var w = canvas.width = 500; var h = canvas.height = 300; var r1 = 95; var c3 = ct.createLinearGradient(0... 阅读全文