前端

js改变文本框内容

云博小周宇1 Min Read 

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8"/>
        <title></title>
    </head>
    <body>
        <input type="button" value="按钮1" onclick="a()"/>
        <input type="button" value="按钮2" onclick="an2()"/>
        <input type="button" value="按钮3" onclick="an3()"/><br><br>
        <input type="text" size="40px" id="tu" disabled="disabled"/>
        <script>
            function a(){
                document.getElementById("tu").value="这是按钮1"
            }
            function an2(){
                document.getElementById("tu").value="这是按钮2"
            }
            function an3() {
                    document.getElementById("tu").value = "这是按钮3"
                }
        </script>
    </body>
</html>