index.html
<!DOCTYPE html> <html lang="zh-cn"> <head> <meta charset="utf8"> <title>基本格式</title> </head> <body> <a href="http://www.baidu.com">百度</a> </body> </html>
index2.html
<!DOCTYPE html> <html> <head> <meta charset="utf8"> <title>基本格式</title> </head> <body> <a href="http://www.baidu.com">百度</a> </body> </html>
index3.html
<!DOCTYPE html> <html> <head> <meta> <title></title> </head> <body> </body> </html>