https://github.com/opendatalab/PDF-Extract-Kitpdf2markdown.py 运行遇到的问题：
错误：
--------------------------------------
C++ Traceback (most recent call last):
--------------------------------------
0 paddle_infer::Predictor::Predictor(paddle::AnalysisConfig const&)
1 std::unique_ptr<paddle::PaddlePredictor, std::default_delete<paddle::PaddlePredictor> > paddle::CreatePaddlePredictor<paddle::AnalysisConfig, (paddle::PaddleEngineKind)2>(paddle::AnalysisConfig const&)
2 paddle::AnalysisPredictor::Init(std::shared_ptr<paddle::framework::Scope> const&, std::shared_ptr<paddle::framework::ProgramDesc> const&)
3 paddle::AnalysisPredictor::PrepareProgram(std::shared_ptr<paddle::framework::ProgramDesc> const&)
4 paddle::AnalysisPredictor::OptimizeInferenceProgram()
5 paddle::inference::analysis::Analyzer::RunAnalysis(paddle::inference::analysis::Argument*)
6 paddle::inference::analysis::IrAnalysisPass::RunImpl(paddle::inference::analysis::Argument*)
7 paddle::inference::analysis::IRPassManager::Apply(std::unique_ptr<paddle::framework::ir::Graph, std::default_delete<paddle::framework::ir::Graph> >)
8 paddle::framework::ir::Pass::Apply(paddle::framework::ir::Graph*) const
9 paddle::framework::ir::SelfAttentionFusePass::ApplyImpl(paddle::framework::ir::Graph*) const
10 paddle::framework::ir::GraphPatternDetector::operator()(paddle::framework::ir::Graph*, std::function<void (std::map<paddle::framework::ir::PDNode*, paddle::framework::ir::Node*, paddle::framework::ir::GraphPatternDetector::PDNodeCompare, std::allocator<std::pair<paddle::framework::ir::PDNode* const, paddle::framework::ir::Node*> > > const&, paddle::framework::ir::Graph*)>)
----------------------
Error Message Summary:
----------------------
FatalError: `Illegal instruction` is detected by the operating system.
[TimeInfo: *** Aborted at 1739780413 (unix time) try "date -d @1739780413" if you are using GNU date ***]
[SignalInfo: *** SIGILL (@0x7f024e84e31a) received by PID 667042 (TID 0x7f0354c40740) from PID 1317331738 ***]解决： 安装 paddlepaddle==2.5.2
错误：
File "/usr/local/py310/lib/python3.10/site-packages/paddleocr/tools/infer/predict_rec.py", line 628, in __call__
rec_result = self.postprocess_op(preds)
File "/usr/local/py310/lib/python3.10/site-packages/paddleocr/ppocr/postprocess/rec_postprocess.py", line 121, in __call__
text = self.decode(preds_idx, preds_prob, is_remove_duplicate=True)
File "/usr/local/py310/lib/python3.10/site-packages/paddleocr/ppocr/postprocess/rec_postprocess.py", line 83, in decode
char_list = [
File "/usr/local/py310/lib/python3.10/site-packages/paddleocr/ppocr/postprocess/rec_postprocess.py", line 84, in <listcomp>
self.character[text_id]
IndexError: list index out of range解决： 配置 pdf2markdown.yaml ocr: model_config: lang: 设置成 ch， 而不是 en
终于跑出结果了：
[2025/02/17 16:56:20] ppocr WARNING: Since the angle classifier is not initialized, it will not be used during the forward process
[2025/02/17 16:56:21] ppocr DEBUG: dt_boxes num : 3, elapsed : 0.10364508628845215
[2025/02/17 16:56:21] ppocr DEBUG: split text box by formula, new dt_boxes num : 7, elapsed : 0.000263214111328125
[2025/02/17 16:56:22] ppocr DEBUG: rec_res num : 7, elapsed : 1.4980812072753906
[2025/02/17 16:56:22] ppocr WARNING: Since the angle classifier is not initialized, it will not be used during the forward process
[2025/02/17 16:56:22] ppocr DEBUG: dt_boxes num : 3, elapsed : 0.10365056991577148
...........
ocr cost: 7.42
Task done, results can be found at outputs/pdf2markdown初步结果表明，文本识别可以，但是组合成 markdown时，存在问题：（没有按照原内容一行一行呈现），还有重复混乱）
4．（3分）下列各句中，没有语病的一句是（4．（3分）下列各句中，没有语病的一句是（一 A
C．一所学校能否形成独特、健康的校园文化，学生能否真正接受并融入其中，这对德育C.一所学校能否形成独特、健康的校园文化，学生能否真正接受并融入其中，这对德育活动的有效开展起着至关重要的作用。活动的有效开展起看至关重要的作用。
$\textcircled{2}$我国5岁至19岁青少年尝试吸烟率$20\%$，吸烟率近$7\%$。