Python数据类型转换——float64-int32

import tensorflow as tf
import numpy as np
a = np.array([1,2,3,4,5,6,7,8,9],dtype='float32');
a = a.reshape(3,3);
c = a + [22,33,44];#c.dtype='float64'
c = c.astype(np.int32)
#c.dtype = 'float32'
print('c=',c);