如 r"this is a line with \n" 则 \n 会显示，并不是换行。 字符串可以用 + 运算符连接在一起，用 * 运算符重复。 Python ...
Offline, deterministic bubble-marker for standard multiple-choice answer sheets (OMR). Accepts PDF (single/multi-page) or high-resolution images (PNG/JPG) and produces an annotated output (preferably ...
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