標籤：下拉表單
<%@ page contentType="text/html; charset=gb2312" %><html><body> <form name="form1" action="SwitchApp.jsp" method="post"> 請選擇一種顏色: <select name="ys"> <option value="red">紅色</option> <option value="green">綠色</option> <option value="blue">藍色</option> </select> <input type="submit" name="submit" value="提交"> </form> <% // switch語句應用樣本java程式片 String s=null; s=request.getParameter("ys"); if(s!=null) { switch(s.charAt(0)) { case 'r': out.println("你選擇的是紅色."); break; case 'g': out.println("你選擇的是綠色."); break; case 'b': out.println("你選擇的是藍色."); break; default: out.println("你沒有選擇."); } } else { out.println("你沒有選擇."); } %></body></html>
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