const int columnpins[] = {5, 6, 7, 8, 9, 10};
const int rowpins[] = {19, 18, 17, 16, 15};
const int led1[5][6] = {{0, 0, 0, 0, 0, 0}, {0, 1, 1, 0, 0, 1}, {0, 1, 1, 0, 1, 0}, {0, 0, 0, 0, 0, 1}, {0, 1, 1, 0, 0, 1}};
const int led2[5][6] = {{1, 0, 1, 0, 1, 0}, {0, 1, 1, 0, 0, 1}, {0, 1, 1, 0, 1, 0}, {0, 0, 0, 0, 0, 1}, {0, 1, 1, 0, 0, 1}};
const int led3[5][6] = {{0, 1, 0, 1, 0, 0}, {0, 1, 1, 0, 0, 1}, {0, 1, 1, 0, 1, 0}, {0, 0, 0, 0, 0, 1}, {0, 1, 1, 0, 0, 1}};
int m = millis();;
int prem;

void setup() {
  for (int i = 0; i < 6; i++)
  {
    pinMode(columnpins[i], OUTPUT);
    pinMode(rowpins[i], OUTPUT);

  }
}

void loop() {

  prem = millis();
  if (prem - m < 2000) {
    xianshi(led2);
  }
  m = prem;
  guanbi();
}
void  guanbi()
{
  for (int i = 0; i < 6; i++)
  {
    if  (digitalRead(columnpins[i]) == 0)
    {
      digitalWrite((columnpins[i]), 1);
    }
  }
}
void  xianshi(int  led[5][6]) {
  for (int i = 0; i < 5; i++) {
    for (int j = 0; j < 6; j++) {
      digitalWrite(rowpins[i], 1);
      digitalWrite(columnpins[j], led[i][j]);

    }
    guanbi();
    digitalWrite(rowpins[i], 0);
  }
}