跟踪填写表单重复信息

JavaScript简单实现简单的跟踪填写重复的信息:

【前期知识准备:需要了解HTML、CSS、JavaScript的基础知识。】

 1 <!DOCTYPE html>
 2 <html>
 3     <head>
 4         <meta charset="UTF-8">
 5         <title>跟踪填写重复的信息</title>
 6     </head>
 7     <body>
 8         <form id="nameShow">
 9             姓氏:<input type="text" id="firstName"  onkeyup="getFirstName()" /><br />
10             名字:<input type="text" id="lastName"  onkeyup="getLastName()" /><br />
11             你的名字是:<span id="firstNameSpan"></span><span id="lastNameSpan"></span><br />
12             <input type="submit" value="提交" onmouseover="getName()"/>&nbsp;<input type="reset" value="重置" />
13         </form>
14     </body>
15     
16     <script>
17         var firstName = document.getElementById("firstName");
18         var lastName = document.getElementById("lastName");
19         var name2 = document.getElementById("name2");
20         
21         function getFirstName(){
22             document.getElementById("firstNameSpan").innerText = firstName.value.trim()+"_";
23         }
24         function getLastName(){
25             document.getElementById("lastNameSpan").innerText = lastName.value.trim();
26         }
27         function getName(){
28             name2.value = firstName.value.trim() + lastName.value.trim();
29         }
30     </script>
31 </html>

页面展示:

① 初始界面:

② 效果展示:

 

posted @ 2018-06-05 23:05  superdrew  阅读(165)  评论(0编辑  收藏  举报