Web Front-endHTML TutorialDisplay the corresponding content through the drop-down box. _html/css_WEB-ITnoseDisplay the corresponding content through the drop-down box. _html/css_WEB-ITnose
比如，我有下拉框
<select name="select"> <option>--请选择--</option> <option value="1">显示内容1</option> <option value="2">显示内容2</option> <option value="3">显示内容3</option> </select>
比如我选择下拉框“显示内容1”，就在右边显示内容1相关的内容。。
比如我选择下拉框“显示内容2”，就在右边显示内容2相关的内容。。
求html代码。。
回复讨论(解决方案)
右边 是什么
右边 是什么
右边就是显示的内容，随便是什么都可以。
<script></script>
<script> <br /> $(document).ready(function(){ <br /> $("#sel").change(function(){ <br /> var flag = $(this).val(); <br /> switch(flag){ <br /> case '1': <br /> $("#content"+flag).show().siblings('div').hide(); <br /> break; <br /> case '2': <br /> $("#content"+flag).show().siblings('div').hide(); <br /> break; <br /> case '3': <br /> $("#content"+flag).show().siblings('div').hide(); <br /> break; <br /> default: <br /> $("div").hide(); <br /> alert("未选择"); <br /> } <br /> }); <br /> }); <br /> </script>
<script></script>
<script> <br /> $(document).ready(function(){ <br /> $("#sel").change(function(){ <br /> var flag = $(this).val(); <br /> switch(flag){ <br /> case '1': <br /> $("#content"+flag).show().siblings('div').hide(); <br /> break; <br /> case '2': <br /> $("#content"+flag).show().siblings('div').hide(); <br /> break; <br /> case '3': <br /> $("#content"+flag).show().siblings('div').hide(); <br /> break; <br /> default: <br /> $("div").hide(); <br /> alert("未选择"); <br /> } <br /> }); <br /> }); <br /> </script>
非常感谢。
<!DOCTYPE html><html><head><script>function changeValue(e){if(e.selectedIndex!=0){document.getElementById("showValue").value=e.options[e.selectedIndex].text;}else{document.getElementById("showValue").value='';}}</script></head><body><select name="select" onchange="changeValue(this)"> <option>--请选择--</option> <option value="1">显示内容1</option> <option value="2">显示内容2</option> <option value="3">显示内容3</option> </select><input type="text" id="showValue" /></body></html> <script></script>
<script> <br /> $(document).ready(function(){ <br /> $("#sel").change(function(){ <br /> var flag = $(this).val(); <br /> switch(flag){ <br /> case '1': <br /> $("#content"+flag).show().siblings('div').hide(); <br /> break; <br /> case '2': <br /> $("#content"+flag).show().siblings('div').hide(); <br /> break; <br /> case '3': <br /> $("#content"+flag).show().siblings('div').hide(); <br /> break; <br /> default: <br /> $("div").hide(); <br /> alert("未选择"); <br /> } <br /> }); <br /> }); <br /> </script>
如果要设置一个默认显示内容怎么办，比如什么都不选择的时候。。。
显示content0
<script></script>
<script> <br /> $(document).ready(function(){ <br /> $("#sel").change(function(){ <br /> var flag = $(this).val(); <br /> switch(flag){ <br /> case '1': <br /> $("#content"+flag).show().siblings('div').hide(); <br /> break; <br /> case '2': <br /> $("#content"+flag).show().siblings('div').hide(); <br /> break; <br /> case '3': <br /> $("#content"+flag).show().siblings('div').hide(); <br /> break; <br /> default: <br /> $("div").hide(); <br /> alert("未选择"); <br /> } <br /> }); <br /> }); <br /> </script>
比如默认请选择的情况下，下面显示一个默认的内容。？
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