1. 判断元素是否为inf
a = np.inf b = -1*np.inf print(np.isinf(a),np.isinf(b)) ==> True,True
2. 取出array里所有取值
a = np.unique(b) # b is a numpy array

1. 判断元素是否为inf
a = np.inf b = -1*np.inf print(np.isinf(a),np.isinf(b)) ==> True,True
2. 取出array里所有取值
a = np.unique(b) # b is a numpy array