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a c++ program views input or output as a stream of bytes.
view..as把..看作是
on input,a program extracts bytes from an input stream,and on output,a program inserts bytes into the output stream.
extract:提取字节.. //输入：程序从输入流中提取；输出：插入字节到输出流；
for a text-oriented program,each byte can represent a character..
基于文本的程序，每个字节代表一个字符;
More generally,the bytes can form a binary representation of character or numeric data;
binary representation:二进制的表示：字节能形成二进制的表示/（字符或数值的）
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原文地址：http://www.cnblogs.com/tinaluo/p/5042099.html
