51help TIY
码：
<html> <head> <script type="text/javascript"> function myfunction(txt) { alert(txt) } </script> </head> <body> <form> <input type="button" onclick="myfunction('早安！')" value="在早晨"> <input type="button" onclick="myfunction('晚安！')" value="在夜晚"> </form> <p>数。</p> </body> </html>
查看结果: