After clicking the button, the text box changes to a Select drop-down list box_Typical special effects

<title>After clicking the button, the text box changes to the Select drop-down list box</title> <input type="text" name="t" id="t" value="ASP"> <select name="sel" id="sel" style="display:none;"> <option value="0"> </option>ASP<option value="1"> </option>ASP.NET<option value="2"> </option>PHP<option value="3"> </option>JAVA</select> <input type="submit" name="Submit" onclick="showSelect();" value="你擅长的">
[Ctrl A select all Note: If you need to introduce external Js, you need to refresh to execute

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