图片加载失败

function nofind(){

var img=event.srcElement;

img.src="http://static.jiaju.com/jiaju/com/images/qgz/no-pic280_238.jpg";

img.onerror=null; //控制不要一直跳动

}

<img onerror="nofind()" src="https://ss2.baidu.com/6ONYsjip0QIZ8tyhnq/it/u=167753580,3986601651&fm=58&s=A942C6169520591344EC39DA0200C0B0" alt="">

js要在html之前加载