<!DOCTYPE html> <html> <head> <title>覆盖</title> </head> <body> <p>2017</p> <button onclick="fu()">覆盖</button> <script> function fu() { document.write("2018"); } </script> </body> </html>
posted on 2018-10-28 18:24 渐心微凉 阅读(74) 评论(0) 编辑 收藏 举报