通过使用<canvas>元素,可以使用JavaScript来绘制各种图形,包括网格。 要绘制一个网格,可以使用<canvas>元素的2D上下文(context)来实现。下面是一个简单的示例代码: 代码语言:html 复制 <!DOCTYPE html> <html> <head> <title>绘制网格</title> <style> canvas { border: 1px solid #000; } </style> </head...
canvas.height= 500; canvas.style.border= "1px solid #000";//画布创建完成varctx = canvas.getContext('2d');//得到context对象,下面画具体内容ctx.font = '20px "微软雅黑"'; ctx.strokeStyle= "blue"//描边<---ctx.strokeRect(0,0,400,200); ctx.fillStyle= 'yellow'//填充<---ctx.fillRect(...
karas.render(<svgwidth="360"height="360"><divstyle={{border:'1px solid #000'}}><spanstyle={{fontFamily:'arial',background:'#F00',fontSize:100}}>a</span><spanstyle={{display:'inlineBlock',width:60,fontFamily:'arial',background:'#0FF',fontSize:60}}>bc</span></div><divstyle=...
<htmllang="en"><head><metacharset="UTF-8"><style>canvas{border:1pxsolid#00CED1; }</style></head><body><canvaswidth="600"height="400"></canvas><script>varmyCanvas =document.querySelector('canvas');varctx = myCanvas.getContext('2d');/*1.绘制点*//*2.点的尺寸*//*3.以坐标中心...
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <style> #canvas { border: 1px solid #000; } </style...
canvas.style.border = "1px solid #000"; //绘制三角形 ctx.beginPath(); //开始路径 ctx.moveTo(100,100); //三角形,左顶点 ctx.lineTo(300, 100); //右顶点 ctx.lineTo(300, 300); //底部的点 ctx.closePath(); //结束路径 ctx.stroke(); //描边路径 ...
DOCTYPEhtml><html lang="en"><head><meta charset="UTF-8"><title>line animate</title><style>canvas{border:1px solid #000;}</style></head><body><canvas id="canvas"width="600"height="400"></canvas><script>varctx=document.getElementById('canvas').getContext('2d');varw=canvas.width,...
<canvas id=c width=100 height=100 style="border:1px solid #000;"></canvas> </div> </body> <script> const canvas = document.getElementById('c'); const ctx = canvas.getContext('2d'); function screenshot() { html2canvas(document.getElementById('input'), { background: '#fff' })...
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>慕课网Wiki</title> <style> #imooc{ border:1px solid #ccc; } </style> </head> <body> <canvas id="imooc">您的浏览器不支持 HTML5 canvas 标签</canvas> <script> const canvas = document.getElementById('imooc'); const ct...
<canvas id=""myCanvas"" width=""200"" height=""100"" style=""border:1px solid #000;""></canvas> <script> var canvas = document.getElementById('myCanvas'); var ctx = canvas.getContext('2d'); var x = 0; var y = 0;