1, img alt attribute, in case the picture does not exist, parsing each browser is not the same
2, the chrome shows a broken image, is displayed in the alt ff text displayed in IE is broken and text image
3、
<img src="错误.jpn" alt="" onerror="showerrimg(this)">
function showerrimg (obj) { var errorimg = "replace image .jpg"; // replace image address obj.src = errorimg; }
Reproduced in: https: //www.cnblogs.com/congfeicong/p/11051389.html