老师授课-3-回答问题
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 <title>无标题文档</title> 6 7 </head> 8 中国成立于哪一年？<input daan="1949" type="text" value="" id="qq" /><input type="button" value="确定" onclick="check()" /><br /> 9 10 </body> 11 </html> 12 <script> 13 function check() 14 { 15 var a = document.getElementById("qq"); 16 var a1 = a.value; 17 var a2 =a.getAttribute("daan"); 18 if(a1==a2) 19 { 20 alert("答对了"); 21 } 22 else 23 { 24 alert("笨蛋"); 25 } 26 } 27 </script>
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