不命名类型，怎么定义？


#include <WiFi.h>
#include <esp_now.h>
#include <Ticker.h>

#include <TFT_eSPI.h>
#include "ui.h"
#include <ArduinoJson.h>
static const uint16_t screenWidth  = 240;
static const uint16_t screenHeight = 240;
u8_t ti=0,tongren_n,biaoqing_n=0,eye_n=0;
int shangyanpi[18]={-220,-180,-140,-100,-60,-20,0,0,0,0,0,0,-20,-60,-100,-140,-180,-220};
static lv_disp_draw_buf_t draw_buf;
static lv_color_t buf[ screenWidth * screenHeight / 10 ];
static lv_color_t buf2[ screenWidth * screenHeight / 10 ];

TFT_eSPI tft = TFT_eSPI(screenWidth, screenHeight);
int a_degx,a_degy;

// void eyeclick_a()
// {
// lv_obj_set_x(ui_bgu, 0);
// lv_obj_set_y(ui_bgu, -240);
// eyeclick_Animation(ui_bgu,0);
// //eyeclickdown_Animation(ui_bgd,0);
// delay(50);
// }

void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
{
    uint32_t w = ( area->x2 - area->x1 + 1 );
    uint32_t h = ( area->y2 - area->y1 + 1 );
    // tft.setSwapBytes(true);
    // tft.pushImageDMA(area->x1, area->y1, w, h,(uint16_t *)&color_p->full);
    tft.startWrite();
    tft.setAddrWindow( area->x1, area->y1, w, h );
    tft.pushColors( ( uint16_t * )&color_p->full, w * h, true );
    tft.endWrite();

    lv_disp_flush_ready( disp );
}

/*Read the touchpad*/
void my_touchpad_read( lv_indev_drv_t * indev_driver, lv_indev_data_t * data )
{
    uint16_t touchX = 0, touchY = 0;

    bool touched = false;//tft.getTouch( &touchX, &touchY, 600 );

    if( !touched )
    {
        data->state = LV_INDEV_STATE_REL;
    }
    else
    {
        data->state = LV_INDEV_STATE_PR;

        /*Set the coordinates*/
        data->point.x = touchX;
        data->point.y = touchY;

        //Serial.print( "Data x " );
        //Serial.println( touchX );

        //Serial.print( "Data y " );
        //Serial.println( touchY );
    }
}

// 设置数据结构体
typedef struct Data_Package {
  byte j1PotX;  //左右摇杆
  byte j1PotY;
  byte j2PotX;
  byte j2PotY;
  bool buttonR1;  //左右按键
  bool buttonR2;
  bool j1Button;  //左右摇杆按键
  bool j2Button;
  bool buttonLB;  //左右扳机按键
  bool buttonRB;
  bool tSwitch1;  //拨动开关   
  byte roll;      //用于M5StackCore2或未来增加的陀螺仪功能
  byte pitch;
  bool buttonR3;
};
Data_Package data; //Create a variable with the above structure

// 数据接收回调函数
void OnDataRecv(const uint8_t * mac, const uint8_t *incomingData, int len) {
  memcpy(&data, incomingData, sizeof(data));
  //Serial.printf("x:%d y:%d ",data.j1PotX,data.j1PotY);
  //Serial.print("  ESP32 Board MAC Address:  ");
  //Serial.println(WiFi.macAddress());
  //Serial.println();
}
/**
 * Structure for holding display buffer information.
 */
/
} lv_disp_draw_buf_t;

void setup() {
  Serial.begin(9600);
  Serial.print("  ESP32 Board MAC Address:  ");
  Serial.println(WiFi.macAddress());
  // 初始化 ESP-NOW
  WiFi.mode(WIFI_STA);
  if (esp_now_init() != 0) {
    Serial.println("Error initializing ESP-NOW");
    return;
  }

  // 设置接收数据回调函数
  esp_now_register_recv_cb(OnDataRecv);

  lv_init();

  #if LV_USE_LOG != 0
    lv_log_register_print_cb( my_print ); /* register print function for debugging */
  #endif

    tft.begin();          /* TFT init */
    tft.setRotation( 0 ); /* Landscape orientation, flipped */

    lv_disp_draw_buf_init( &draw_buf, buf, buf2, screenWidth * screenHeight / 10 );

    /*Initialize the display*/
    static lv_disp_drv_t disp_drv;
    lv_disp_drv_init( &disp_drv );
    /*Change the following line to your display resolution*/
    disp_drv.hor_res = screenWidth;
    disp_drv.ver_res = screenHeight;
    disp_drv.flush_cb = my_disp_flush;
    disp_drv.draw_buf = &draw_buf;
    lv_disp_drv_register( &disp_drv );

    /*Initialize the (dummy) input device driver*/
    static lv_indev_drv_t indev_drv;
    lv_indev_drv_init( &indev_drv );
    indev_drv.type = LV_INDEV_TYPE_POINTER;
    indev_drv.read_cb = my_touchpad_read;
    lv_indev_drv_register( &indev_drv );

    
    // analogWrite(2, 102);//2048---10ms 205---1ms 0
    // analogWrite(3, 205);//45 
    // analogWrite(19, 306);//90
    // analogWrite(18, 409);//135
     analogWrite(2, 306);//90
     analogWrite(3, 306);//90
    // analogWrite(19, 306);//90
    // analogWrite(18, 306);//90
     data.j2PotX=127;
     data.j2PotY=127;
     analogWriteResolution(12);
     analogWriteFrequency(50);

    ui_init();
    
}

void loop() {
  lv_timer_handler(); /* let the GUI do its work */
  lv_obj_set_x(ui_changgui, data.j1PotX-127);
  lv_obj_set_y(ui_changgui, data.j1PotY-127);
  lv_obj_set_x(ui_huachi, data.j1PotX-127);
  lv_obj_set_y(ui_huachi, data.j1PotY-127);
  lv_obj_set_y(ui_sm, shangyanpi[eye_n]);
  lv_obj_set_y(ui_xm, -shangyanpi[eye_n]);
  a_degx=map(data.j2PotX,0,255,102,512);
  a_degy=map(data.j2PotY,0,255,102,512);
  analogWrite(2, a_degx);//90
  analogWrite(3, a_degy);//90
  delay(10);
  if(data.buttonLB==0)
  {
    if(eye_n<=17&&eye_n>=0)
    {
      eye_n+=1;
      //Serial.printf("eye_n=%d",eye_n);
      //Serial.println();
      //delay(5);
    }
    else
    {
      eye_n=0;
    }
  }
  // if(data.buttonRB==0)
  // {
  //   //eyeclick_a();
  // }
   if(data.buttonR2==0)
  {
    lv_obj_add_flag(ui_tongren30, LV_OBJ_FLAG_HIDDEN | LV_OBJ_FLAG_ADV_HITTEST);
    lv_obj_add_flag(ui_tongren60, LV_OBJ_FLAG_HIDDEN | LV_OBJ_FLAG_ADV_HITTEST);
    lv_obj_add_flag(ui_tongren90, LV_OBJ_FLAG_HIDDEN | LV_OBJ_FLAG_ADV_HITTEST);
    lv_obj_add_flag(ui_tongren155, LV_OBJ_FLAG_HIDDEN | LV_OBJ_FLAG_ADV_HITTEST);
    lv_obj_add_flag(ui_tongren255, LV_OBJ_FLAG_HIDDEN | LV_OBJ_FLAG_ADV_HITTEST);
    lv_obj_add_flag(ui_tongren300, LV_OBJ_FLAG_HIDDEN | LV_OBJ_FLAG_ADV_HITTEST);
    switch(tongren_n)
    {
      case 0:
      lv_obj_clear_flag(ui_tongren30, LV_OBJ_FLAG_HIDDEN);break;
      case 1:
      lv_obj_clear_flag(ui_tongren60, LV_OBJ_FLAG_HIDDEN);break;
      case 2:
      lv_obj_clear_flag(ui_tongren90, LV_OBJ_FLAG_HIDDEN);break;
      case 3:
      lv_obj_clear_flag(ui_tongren155, LV_OBJ_FLAG_HIDDEN);break;
      case 4:
      lv_obj_clear_flag(ui_tongren255, LV_OBJ_FLAG_HIDDEN);break;
      case 5:
      lv_obj_clear_flag(ui_tongren300, LV_OBJ_FLAG_HIDDEN);break;
      case 6:
      lv_obj_clear_flag(ui_tongren255, LV_OBJ_FLAG_HIDDEN);break;
      case 7:
      lv_obj_clear_flag(ui_tongren155, LV_OBJ_FLAG_HIDDEN);break;
      case 8:
      lv_obj_clear_flag(ui_tongren90, LV_OBJ_FLAG_HIDDEN);break;
      case 9:
      lv_obj_clear_flag(ui_tongren60, LV_OBJ_FLAG_HIDDEN);break;
    }
    if(tongren_n<=8&&tongren_n>=0)
    {
      tongren_n+=1;
    }
    else
    {
      tongren_n=0;
    }
    delay(10);
    //eyeclick_a();
  }
   if(data.buttonR1==0)
    {
      lv_obj_add_flag(ui_changgui, LV_OBJ_FLAG_HIDDEN);
    lv_obj_add_flag(ui_huachi, LV_OBJ_FLAG_HIDDEN);
    switch(biaoqing_n)
    {
      case 0:
      lv_obj_clear_flag(ui_changgui, LV_OBJ_FLAG_HIDDEN);break;
      case 1:
      lv_obj_clear_flag(ui_huachi, LV_OBJ_FLAG_HIDDEN);break;
    }
    if(biaoqing_n<=0&&biaoqing_n>=0)
    {
      biaoqing_n+=1;
    }
    else
    {
      biaoqing_n=0;
    }
    delay(200);
    }
}
}

看不清

这有个类似的问题, 你可以参考下: https://ask.csdn.net/questions/7510960
我还给你找了一篇非常好的博客，你可以看看是否有帮助，链接：想要对人工智能模型进行评估，不了解评估指标怎么办？
除此之外, 这篇博客: 如何列出目录的所有文件？中的 获取完整的路径名 部分也许能够解决你的问题, 你可以仔细阅读以下内容或跳转源博客中阅读:
正如您所注意到的，上面的代码中没有文件的完整路径。如果需要绝对路径，则可以使用os.path模块的另一个函数_getfullpathname ，将从os.listdir()获得的文件作为参数。还有其他完整路径的方法，稍后我们将进行检查（如mexmex所建议，我将_getfullpathname替换为abspath ）。
```
 import os
 files_path = [os.path.abspath(x) for x in os.listdir()]
 print(files_path)

 >>> ['F:\\documenti\applications.txt', 'F:\\documenti\collections.txt']
```
- 您还可以看一下褚英昊老师的人工智能必备数学知识课程中的马尔科夫链的定义小节, 巩固相关知识点
- 以下回答由chatgpt基于相关博客总结生成:
  在Java中如果不给变量或对象命名类型，是无法定义的。Java是一种强类型语言，每个变量或对象都必须有明确的类型。如果不指定类型，代码是无法通过编译的。因此，不能提供相关代码示例。