Python從文件中讀取指定的行

若是想根據給出的行號， 從文本文件中讀取一行數據，  Python標準庫linecache模塊很是適合這個任務:python 測試文件內容 ：測試 This is line 1. This is line 2. This is line 3. This is line 4. This is line 5. This is line 6. This is line 7. This is line 8

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