np.int报错如下：DeprecationWarning: `np.int` is a deprecated alias for the builtin `int`. To silence this warning, use `int` by itself. Doing this will not modify any behavior and is safe.

原因在于np.int在numpy1.20已经被废弃掉了，具体可以参考：https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations

修改方法：

将 np.int 改为 np.int_ 或者 np.int32 或者 np.int64 。