html 图片不显示 很简单 就是不显示 什么问题


<!DOCTYPE html>
<html >
<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>
<body>
    <canvas id="111" width="700" height="700" style="border:20px solid rgb(0, 0, 0); background-color:rgb(110, 47, 192)">
    </canvas>
</body>
</html>
<script>
    var cvs=document.getElementById("111");
    var cxt=cvs.getContext("2d");
    
    img.src="img/111.jpeg";
    var x=0,y=0;
    img.onload=function(){
        cxt.drawImage(img,100,100,100,100);
    }
 
</script>

var img = document.createElement("img");

img


这里先创建img对象

new image()