canvas之抒写文字

 <canvas id="canvas" width="500" height="400" style="background-color: yellow;"></canvas>

 var canvas=document.getElementById("canvas");
     var cxt=canvas.getContext("2d");
     cxt.font="40px 黑体";
     //绘制实心字
     cxt.fillStyle="red";//填充红色
     cxt.fillText("hello,思思博士",10,50);
     //绘制空心字
     cxt.strokeStyle="red";//红色边
     cxt.strokeText("hello,思思博士",10,100);