Otherwise, the original character is placed in the output stream, and the input stream is reset to the original position.
否则，将原来的字符放到输出流中，并且将输入流重置到原始位置。
Otherwise, the original character is placed in the output stream, and the input stream is reset to the original position.
否则，将原来的字符放到输出流中，并且将输入流重置到原始位置。
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