中老年手机用户常常只使用一些简单功能，比如电话号码簿。 现行的手机键盘常按拼音首字母排列号码簿，造成个别键对应的姓名极多，重码现象严重 -The current regular cell phone keypad numbers arranged according to the first letter of alphabet books, resulting in the name of the individual keys correspond to very much emph