JavaScript batch check code to display default image when the image does not exist_Image special effects

This is a batch inspection, a better idea

<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <title>Exercise to display default image when no image exists by A Huinan</title> <style type="text/css"> img{ border:1px solid #cccccc; width:100px; height:50px; } </style> <img src="1.jpg" alt="JavaScript batch check code to display default image when the image does not exist_Image special effects" > <img src="2.jpg" alt="JavaScript batch check code to display default image when the image does not exist_Image special effects" > <img src="3.jpg" alt="JavaScript batch check code to display default image when the image does not exist_Image special effects" > <img src="4.jpg" alt="JavaScript batch check code to display default image when the image does not exist_Image special effects" >