NRF 24L01 ,sending and receiving the array of long data

MOSHAYEDI:
i check your solution but it didn't work

"It didn't work" is useless statement. It provides no information with which to help you.

I think you need to change your code so that the wireless call is outside the FOR loop - like this

void loop(){
  for (i = 0; i < 20; i = i + 1) {
   data[i]=myArray1[i];
   data[i]=myArray2[i];
  }
  radio.write(data,sizeof(data));
  delay(5000);
}

Also, as you want to change the data in the array called data[] you should not make it constant.

And this piece of code

  data[i]=myArray1[i];
  data[i]=myArray2[i];

does exactly the same thing as this

   data[i]=myArray2[i];

Can you see why?

...R