摘要： //function kindly provided by phrogz at: //http://stackoverflow.com/questions/4576724/dotted-stroke-in-canvas var CP = window.CanvasRenderingContext2D && CanvasRenderingContext2D.prototype; if (CP && CP.lineTo) { CP.dashedLine = function (x, y, x2, y2, dashArray) { ... 阅读全文