<html> <head> <body> <script language="javascript"> function show(){ document.form1.b3.style.display="" 设置""时为显示 document.form1.b4.style.display="" document.form1.txt.style.display="" } function hid(){ document.form1.b3.style.display="none" 设置"none"时为隐藏 document.form1.b4.style.display="none" document.form1.txt.style.display="none" } </script> <form id="form1" name="form1"> <input type="button" name="but1" value="显示" onclick="show()"/> <input type="button" name="but2" value="隐藏" onclick="hid()"/> <input type="button" name="b3" id="but3" value="Hello"/> <input type="button" name="b4" id="but3" value="World"/> <input type="text" name="txt" id="txt"/> </form> </body> </head></html> 主要通过设置表单元素的style.display来实现隐藏和显示. 相关文章: