Created by: wangchaochaohu

API fluid.layers.array_read/array_write报错信息增强 [仅涉及Python端]

• C++端已在https://github.com/PaddlePaddle/Paddle/pull/23468 进行修改。
• API接口

def array_write(x, i , array=None):
def array_read(array, i):

对输入（x i arrary等输入变量）是否是Variable 进行检查

###Pytho 端测试代码

            import paddle.fluid as fluid
            import numpy as np
            arr = fluid.layers.create_array(dtype='float32')
            tmp = np.random.randn(2, 1).astype('float32')
            i = fluid.layers.fill_constant(shape=[1], dtype='float32', value=10)
            arr = fluid.layers.array_write(tmp, i, array=arr)
            item = fluid.layers.array_read(arr, i)
            input = fluid.layers.Print(item, message="The LoDTensor of the i-th position:")
            main_program = fluid.default_main_program()
            exe = fluid.Executor(fluid.CPUPlace())
            exe.run(main_program)

报错信息

TypeError: The data type of 'i' in array_write must be ['int32', 'int64'], but received float32.