html和js环境，代码简易通用。这个虚拟键盘的代码可以在触摸屏的广泛环境下使用。注意：1，键盘按键体积较大，一般的手机屏幕上不适用；2，整体代码比较精简，唯有90k的jquery-1.6版本的统一脚本代码空间占用较大。-html and js environment, the code is simple and universal. The code of the virtual keyboard can be used in the touch screen of the wide range of environments. Note: 1, the volume of the keyboard keys on the phone screen NA　2 overall more streamlined code, only 90k jquery-1.6 version unified scr ipt code space.