In this sample program, only alphabetic and numeric characters (a-z, a-z, and 0-9) can be ciphered.
在这个示例程序中，只能加密字母和数字字符(a - z、a - z和0 - 9)。
A generic name for a device that can store and process numeric and alphabetic in formation.
能存储和处理数字与字母信息的设备的总称。
WEP keys can be numeric, alphabetic, or a combination of both.
WEP密钥可以是数字，字母，或两者兼而有之。
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