配列(Array)

#   0    
a = np.array([1,2,3])        //     
a.shape                      //       
a = np.zeros((2,2))          //      0 2x2   
b = np.ones((1,2))           //      1 1x2   
c = np.full((2,2), 7)        //      7 2x2   
d = np.eye(2)                //Create a 2x2 identity matrix
e = np.random.random((2,2))  //Create an array filled with random values