源代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>编程字典</title> <meta charset="UTF-8"> <meta name="description" content="Free Web tutorials"> <meta name="keywords" content="HTML,CSS,XML,JavaScript"> <meta name="author" content="John Doe"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> </head> <body> <p>所有的meta信息都出现在head部分...</p> </body> </html>
运行结果