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  • canvas-8clip.html

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Document</title>
    </head>
    <body>
        <canvas id="canvas" style="margin:0 auto;border:1px #ddd solid">
            The current browser does not support Canvas, can replace the browser a try!
        </canvas>
    
        <script>
    
            window.onload = function(){
                var canvas = document.getElementById('canvas');
    
                canvas.width = 1024;
                canvas.height = 768;
    
                if(canvas.getContext('2d')){
                    var context = canvas.getContext('2d');
    
                    context.beginPath();
                    context.fillStyle = "#000";
                    context.fillRect(0,0,canvas.width,canvas.height);
    
                    context.beginPath();
                    context.arc(500,400,150,0,Math.PI*2)
                    context.fillStyle = "#fff";
                    context.fill();
                    context.clip();
    
                    context.fillStyle = "#058";
                    context.font = "bold 120px Arial";
                    context.textAlign = "center";
                    context.textBaseline = "middle";
    
                    context.fillText("Canvas",canvas.width/2,canvas.height/2)
    
                }else{
                    alert('当前游览器不支持Canvas,请更换游览器后再试!');
                }
            }
    
        </script>
    </body>
    <script>
        /*clip 剪辑区域
    
            context,clip
        */
    </script>
    </html>
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  • 原文地址:https://www.cnblogs.com/cynthia-wuqian/p/4988529.html
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