RuntimeWarning: More than 20 figures have been opened.
循環中創建太多plt對象，在每個循環中加入上面兩句 ...
原文：The document cannot be opened. It has been renamed, deleted or moved.
In theIndividual componentssection of the Visual Studio Installer, make sure thatRazor Language Servicesis checked. After installation, make sure thatRazor Language Servicesis enabled in theInstalled ...
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