<html><head lang="en"> <meta charset="UTF-8"> <title></title> </head> <body> <p>1111111</p> <img src="img/img_01.jpg"> <a href="#">百度一下</a> <p>22222</p> <script> console.log(document.all); </script> </body></html>
打印结果：
HTMLAllCollection[10]0: html1: head2: meta3: title4: body5: p6: img7: a8: p9: scriptlength: 10__proto__: HTMLAllCollection