1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 5 6 <title>5.25 姓名问答练习</title> 7 </head> 8 9 <body> 10 <form> 11 你叫什么名字？ 12 <input type="text" value="" mingzi="岁月静好" id="1" /> 13 <input type="button" value="检查" id="2" onclick="check()" /> 14 </form> 15 </body> 16 </html> 17 <script> 18 function check() 19 { 20 var a=document.getElementById("1"); 21 var b=a.value; 22 var c=a.getAttribute("mingzi"); 23 if(b==c) 24 { 25 alert("回答正确"); 26 } 27 else 28 { 29 alert("回答错误") ; 30 } 31 } 32 </script>
原文：http://www.cnblogs.com/suiyuejinghao123/p/5536391.html