菜鸟教程在线编辑器

AI 编程工具
 
                <!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>

<script>
var str = "abc123<img src=\"test.png\">def";
var patt = /<img.*?src="(.*?)".*?\/?>/gi;
console.log(str.match(patt));
document.write(escapeHtml(str.match(patt)[0]));
	
// 为保证测试输出正常，需要转义输出 html 的标签	
function escapeHtml(unsafe)
{
  return unsafe
    .replace(/&/g, "&amp;")
    .replace(/</g, "&lt;")
    .replace(/>/g, "&gt;")
    .replace(/"/g, "&quot;")
    .replace(/'/g, "&#039;");
}
</script>

</body>
</html>
              