np.int報錯如下：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.

原因在於np.int在numpy1.20已經被廢棄掉了，具體可以參考：https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations

修改方法：

將 np.int 改為 np.int_ 或者 np.int32 或者 np.int64 。