I installed Anaconda and VScode, and running in Python 2.7.15 conda based environment, but numpy can not be used.我安装了 Anaconda 和 VScode,并在基于 Python 2.7.15 conda 的环境中运行,但无法使用 numpy。I checked Anaconda Navigator and all numpy plugins are installed.我检查了 Anaconda Navigator 并安装了所有 numpy 插件。