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3、内嵌 <!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> <script> // 弹出对话框helloworld alert("HelloWorld") document.write("helloworld") // console.log("helloworld222") </script> </head> <body> </body> </html> -
2、行内 <!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> <button onclick="alert('helloworld')">点我</button> <a href="javascript:alert('hello')">点我</a> </body> </html>
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1、helloworld <!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> <script> // 弹出对话框helloworld alert("HelloWorld") document.write("helloworld") // console.log("helloworld222") </script> </head> <body> </body> </html>
