1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <title>Title</title> 6 </head> 7 <body> 8 <input type="text" id="user"> 9 <input type="button" onclick="GetData();" value ="点我"/> 10 <script> 11 function GetData() { 12 var i = document.getElementById('user'); 13 alert(i.value); 14 } 15 </script> 16 </body> 17 </html>
