tabindex属性
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <a href="http://www.w3school.com.cn/" tabindex="2">W3School</a> <a href="http://www.google.com/" tabindex="1">Google</a> <a href="http://www.microsoft.com/" tabindex="3">Microsoft</a> </body> </html>
tabindex属性的具体作用是检测到键盘tab键的输入则进行切换