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实现代码","currentQuestion":"先预测采样结果，再判断指标名称 · 实现代码","sourceSlides":[],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-d74eccff206385335e8d3506","nextBlock":"b-130a7a62680c8d863305f588","prerequisites":[{"id":"b-6aef8530e7b3be40b1bf2cfa","url":"#b-6aef8530e7b3be40b1bf2cfa","role":"section-title"},{"id":"b-afe666ffae5c1f01ccdc8b95","url":"#b-afe666ffae5c1f01ccdc8b95","role":"problem-context"}],"relatedBlocks":[]},{"id":"b-130a7a62680c8d863305f588","type":"pre","scope":"document","url":"https://codingai-lec03.pages.dev/course/notebook-blocks/2240f73632414eacbe7d39922342aee0.html#b-130a7a62680c8d863305f588","content":"```\nimport os, tempfile\nfrom pathlib import Path\n# Isolated ephemeral workspace supports detached runs with readonly project storage.\nSPATIAL_RUN_DIR = Path(tempfile.mkdtemp(prefix='lecture03-'))\nos.chdir(SPATIAL_RUN_DIR)\nprint('Ephemeral experiment directory:', 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