<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<img src="https://upload-imag1es.jianshu.io/upload_images/2666001-57f1523c3f469016.png?imageMogr2/auto-orient/strip|imageView2/2/w/650/format/webp"
onerror="noFind(this);" />
<script>
function noFind(event){
console.log("event",event)
var img = event;
img.src = "https://pic.cnblogs.com/avatar/1505226/20191123150748.png" // 默认图片地址
img.onerror = null; // 控制不要循环展示错误
}
</script>
</body>
</html>
