有什么问题请到评论中发表<br> <!--# 特效来源:http://www.mb5u.com/jscode --> <!-- 把下列代码加到<body>区域中 --> <SCRIPT LANGUAGE=\"JavaScript\"> <!-- Begin function showKeyCode() { var character = document.characterCode.character.value.substring(0,1); var code = document.characterCode.character.value.charCodeAt(0); var msg = \"这个字母\"+character+\"的ASCII码是:\"+code+\".\"; alert(msg); } // End --> </script> <form name=\"characterCode\"> <left>请输入一个字母: <input type=\"text\" name=\"character\" size=\"15\"> <input type=\"button\" value=\"看一下键值\" onClick=\"showKeyCode();\"> </left> </form>