...象實(shí)例創(chuàng)建一個(gè)圓形:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.beginPath();ctx.arc(100,75,50,0,2*Math.PI);ctx.stroke();嘗試一下 ?瀏覽器支持Internet Explorer 9、Firefox、Opera、Chrome 和 Safa...
http://www.o2fo.com/jsref/met-canvas-arc.html...后用紅色來給它填色:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.rect(20,20,150,100);ctx.fillStyle="red";ctx.fill();嘗試一下 ?瀏覽器支持Internet Explorer 9、Firefox、Opera、Chrome 和 Safari ...
http://www.o2fo.com/jsref/met-canvas-fill.html...于兩個(gè)切線之間的弧:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.beginPath(); ctx.moveTo(20,20); // Create a starting pointctx.lineTo(100,20); //Create a horizontal linectx.arcTo(150,20,15...
http://www.o2fo.com/jsref/met-canvas-arcto.html...ello world!" 和 "Big smile!":YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.font="20px Georgia";ctx.fillText("Hello World!",10,50);ctx.font="30px Verdana";// Create gradientvar gradient=ctx.createLinearGradient(0,0,...
http://www.o2fo.com/jsref/met-canvas-filltext.html...,形狀是紅色的字母 L:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.beginPath();ctx.moveTo(20,20);ctx.lineTo(20,100);ctx.lineTo(70,100);ctx.strokeStyle="red";ctx.stroke();嘗試一下 ?瀏覽器支持Intern...
http://www.o2fo.com/jsref/met-canvas-stroke.html...中,則繪制一個(gè)矩形:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.rect(20,20,150,100);if (ctx.isPointInPath(20,50)) { ctx.stroke(); };嘗試一下 ?瀏覽器支持Internet Explorer 9、Firefox、Opera...
http://www.o2fo.com/jsref/met-canvas-ispointinpath.html... "Big smile!"(帶漸變):YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.font="20px Georgia";ctx.strokeText("Hello World!",10,50);ctx.font="30px Verdana";// Create gradientvar gradient=ctx.createLinearGradient(0,0...
http://www.o2fo.com/jsref/met-canvas-stroketext.html...條路徑;綠色和紫色:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.beginPath(); ctx.lineWidth="5";ctx.strokeStyle="green"; // Green pathctx.moveTo(0,75);ctx.lineTo(250,75);ctx.stroke(); // Draw itctx.beginPat...
http://www.o2fo.com/jsref/met-canvas-beginpath.html...前,檢查字體的寬度:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");varctx=c.getContext("2d");ctx.font="30px Arial";var txt="Hello World"ctx.fillText("width:" + ctx.measureText(txt).width,10,50)ctx.fillText(txt,10,100);嘗試一下 ?瀏覽...
http://www.o2fo.com/jsref/met-canvas-measuretext.html...位置 300,150 的一條線:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.beginPath();ctx.moveTo(0,0);ctx.lineTo(300,150);ctx.stroke();嘗試一下 ?瀏覽器支持Internet Explorer 9、Firefox、Opera、Chrome 和...
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...象實(shí)例創(chuàng)建一個(gè)圓形:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.beginPath();ctx.arc(100,75,50,0,2*Math.PI);ctx.stroke();嘗試一下 ?瀏覽器支持Internet Explorer 9、Firefox、Opera、Chrome 和 Safa...
http://www.o2fo.com/jsref/met-canvas-arc.html...后用紅色來給它填色:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.rect(20,20,150,100);ctx.fillStyle="red";ctx.fill();嘗試一下 ?瀏覽器支持Internet Explorer 9、Firefox、Opera、Chrome 和 Safari ...
http://www.o2fo.com/jsref/met-canvas-fill.html...于兩個(gè)切線之間的?。篩ourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.beginPath(); ctx.moveTo(20,20); // Create a starting pointctx.lineTo(100,20); //Create a horizontal linectx.arcTo(150,20,15...
http://www.o2fo.com/jsref/met-canvas-arcto.html...ello world!" 和 "Big smile!":YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.font="20px Georgia";ctx.fillText("Hello World!",10,50);ctx.font="30px Verdana";// Create gradientvar gradient=ctx.createLinearGradient(0,0,...
http://www.o2fo.com/jsref/met-canvas-filltext.html...,形狀是紅色的字母 L:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.beginPath();ctx.moveTo(20,20);ctx.lineTo(20,100);ctx.lineTo(70,100);ctx.strokeStyle="red";ctx.stroke();嘗試一下 ?瀏覽器支持Intern...
http://www.o2fo.com/jsref/met-canvas-stroke.html...中,則繪制一個(gè)矩形:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.rect(20,20,150,100);if (ctx.isPointInPath(20,50)) { ctx.stroke(); };嘗試一下 ?瀏覽器支持Internet Explorer 9、Firefox、Opera...
http://www.o2fo.com/jsref/met-canvas-ispointinpath.html... "Big smile!"(帶漸變):YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.font="20px Georgia";ctx.strokeText("Hello World!",10,50);ctx.font="30px Verdana";// Create gradientvar gradient=ctx.createLinearGradient(0,0...
http://www.o2fo.com/jsref/met-canvas-stroketext.html...條路徑;綠色和紫色:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.beginPath(); ctx.lineWidth="5";ctx.strokeStyle="green"; // Green pathctx.moveTo(0,75);ctx.lineTo(250,75);ctx.stroke(); // Draw itctx.beginPat...
http://www.o2fo.com/jsref/met-canvas-beginpath.html...前,檢查字體的寬度:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");varctx=c.getContext("2d");ctx.font="30px Arial";var txt="Hello World"ctx.fillText("width:" + ctx.measureText(txt).width,10,50)ctx.fillText(txt,10,100);嘗試一下 ?瀏覽...
http://www.o2fo.com/jsref/met-canvas-measuretext.html...位置 300,150 的一條線:YourbrowserdoesnotsupporttheHTML5canvastag.JavaScript:var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.beginPath();ctx.moveTo(0,0);ctx.lineTo(300,150);ctx.stroke();嘗試一下 ?瀏覽器支持Internet Explorer 9、Firefox、Opera、Chrome 和...
http://www.o2fo.com/jsref/met-canvas-moveto.html抱歉,暫時(shí)沒有相關(guān)的文章
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