8盏指示灯闪烁，闪烁频率为1Hz，闪烁5次后，8盏指示灯全灭；灭了1秒后，8盏指示灯流水点亮，流水间隔时间为0.2秒，8盏灯全亮后停留2秒；然后 8盏指示灯流水熄灭，流水间隔时间为0.4秒，最后指示灯全灭 单片机代码

这里提供一份基于STM32的C语言代码实现：

#include "stm32f4xx.h"
#include "stm32f4xx_gpio.h"
#include "stm32f4xx_rcc.h"

#define LED_PORT GPIOA
#define LED_PIN_0 GPIO_Pin_0
#define LED_PIN_1 GPIO_Pin_1
#define LED_PIN_2 GPIO_Pin_2
#define LED_PIN_3 GPIO_Pin_3
#define LED_PIN_4 GPIO_Pin_4
#define LED_PIN_5 GPIO_Pin_5
#define LED_PIN_6 GPIO_Pin_6
#define LED_PIN_7 GPIO_Pin_7

void Delay(__IO uint32_t nCount);

int main(void) {
  GPIO_InitTypeDef GPIO_InitStructure;

  // Enable the GPIOA peripheral clock
  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);

  // Configure the GPIO pins for the LEDs
  GPIO_InitStructure.GPIO_Pin = LED_PIN_0 | LED_PIN_1 | LED_PIN_2 | LED_PIN_3 | LED_PIN_4 | LED_PIN_5 | LED_PIN_6 | LED_PIN_7;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(LED_PORT, &GPIO_InitStructure);

  // Blink the LEDs 5 times at 1Hz
  for (int i = 0; i < 5; i++) {
    GPIO_SetBits(LED_PORT, LED_PIN_0 | LED_PIN_1 | LED_PIN_2 | LED_PIN_3 | LED_PIN_4 | LED_PIN_5 | LED_PIN_6 | LED_PIN_7);
    Delay(500);
    GPIO_ResetBits(LED_PORT, LED_PIN_0 | LED_PIN_1 | LED_PIN_2 | LED_PIN_3 | LED_PIN_4 | LED_PIN_5 | LED_PIN_6 | LED_PIN_7);
    Delay(500);
  }

  // Wait for 1 second
  Delay(1000);

  // Light up the LEDs in a flowing pattern at 0.2s interval
  for (int i = 0; i < 8; i++) {
    GPIO_SetBits(LED_PORT, 1 << i);
    Delay(200);
  }

  // Wait for 2 seconds
  Delay(2000);

  // Turn off the LEDs in a flowing pattern at 0.4s interval
  for (int i = 0; i < 8; i++) {
    GPIO_ResetBits(LED_PORT, 1 << i);
    Delay(400);
  }

  // Turn off all the LEDs
  GPIO_ResetBits(LED_PORT, LED_PIN_0 | LED_PIN_1 | LED_PIN_2 | LED_PIN_3 | LED_PIN_4 | LED_PIN_5 | LED_PIN_6 | LED_PIN_7);

  while (1) {}

  return 0;
}

// Delay function using a for loop
void Delay(__IO uint32_t nCount) {
  while(nCount--) {
  }
}

该代码使用了STM32的GPIO库控制8盏LED灯的状态，通过一系列延时函数实现闪烁、流水点亮和熄灭的效果。注意代码中的延时函数需要根据实际硬件环境进行调整，以达到所需效果。