The data can be sent either as binary data or ASCII text up to 15 pages in length, with a page being up to 93 characters in length; the test set only provides support for ASCII messages.
可以用二进制数据或ascii文本的形式最多发送15页的数据，每页最多有93个字符；测试装置仅提供对ascii消息的支持。
In this example, you create an appropriate file object, then write the binary characters with ASCII values from 50 to 69.
在这个示例中，创建一个合适的file对象，然后用从50到69的ascii值写入二进制字符。
ASCII strings can also be used to represent binary data as byte streams.
ASCII字符串也能被用于表示二进制数据从而当作字节流。
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