无法从cmd打开火花但从Jupyter运行良好

Question

我刚刚在Windows中安装了Spark。当我从jupyter运行pyspark时它工作正常，但无法从cmd打开（虽然直接从bin文件夹工作）。我检查了路径，但没关系。

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\VB>spark-shell
The system cannot find the path specified.

C:\Users\VB>pyspark
The system cannot find the path specified.
The system cannot find the path specified.

C:\Users\VB>sparkR
The system cannot find the path specified.
The system cannot find the path specified.

在Jupyter：

请告诉问题在哪里