from camera import Camera, GrabMode, PixelFormat, FrameSize, GainCeiling
import time
cam = Camera(
    data_pins=[45,47,14,40,5,42,41,39],
    vsync_pin=21,
    href_pin=38,
    sda_pin=17,
    scl_pin=18,
    pclk_pin=48,
    xclk_pin=-1,
    xclk_freq=20000000,
    powerdown_pin=46,
    reset_pin=9,
    pixel_format=PixelFormat.RGB565,
    frame_size=FrameSize.QVGA,
    jpeg_quality=90,
    fb_count=2)
cam.init()

#f=open("a.jpg","wb")
#f.write(bytes(img))
#f.close()

while 1:
    c=time.ticks_ms()
    img = cam.capture()
    time.sleep_ms(100)
    e=time.ticks_ms()
    print(1/((e-c)/1000),"FPS")

LCD ST7789 和ESP32S3 OV2640

from machine import Pin, SPI
import st7789py as st7789
spi=SPI(1,baudrate=20000000, polarity=1, sck=Pin(6), mosi=Pin(7),miso=Pin(15))
tft=st7789.ST7789(spi,240,320,reset=Pin(3, Pin.OUT),cs=Pin(16, Pin.OUT),dc=Pin(10, Pin.OUT),backlight=Pin(11, Pin.OUT),)
tft.rotation(1)
tft.fill(st7789.GREEN)
from camera import Camera, GrabMode, PixelFormat, FrameSize, GainCeiling
import time
cam = Camera(
    data_pins=[45,47,14,40,5,42,41,39],
    vsync_pin=21,
    href_pin=38,
    sda_pin=17,
    scl_pin=18,
    pclk_pin=48,
    xclk_pin=-1,
    xclk_freq=20000000,
    powerdown_pin=46,
    reset_pin=9,
    pixel_format=PixelFormat.RGB565,
    frame_size=FrameSize.QVGA,grab_mode=GrabMode.LATEST, fb_count=2)
cam.init()


while 1:
    c=time.ticks_ms()
    img = cam.capture()
    tft.blit_buffer(img, 0, 0, 240, 320)
    e=time.ticks_ms()
    print(1/((e-c)/1000),"FPS")

function formatNumber(num) {
  // 判断输入是否为字符串，如果是字符串则转为数字
  if (typeof num === 'string') {
    // 移除可能存在的非数字字符（如逗号等）
    num = parseFloat(num.replace(/[^0-9.-]+/g, ''));
    if (isNaN(num)) {
      return 0; // 如果转换失败，返回 0 或其他默认值
    }
  } else if (typeof num !== 'number') {
    // 如果输入既不是字符串也不是数字，返回 0 或其他默认值
    return 0;
  }
  // 保留两位小数并转为数字返回
  return Number(num.toFixed(2));
}

function showFormatNumber(num) {
    if (typeof num === 'string') {
        num = parseFloat(num.replace(/,/g, ''));
        if (isNaN(num)) {
            return '0.00';
        }
    }
    if (typeof num !== 'number') {
        return '0.00';
    }
    return num.toLocaleString('en-US', {
        minimumFractionDigits: 0,
        maximumFractionDigits: 2
    });
}

需要leftJoin 关联一个可能为空的表，设置IFNULL(COUNT(a.id),0)

RT 上代码

        return $this->alias("a")
                    ->join("loan_co b","a.loan_co_a=b.id")
                    ->join("loan_co c","a.loan_co_b=c.id")
                    ->leftJoin("loan_hk d","a.id=d.lid")
                    ->where($where)
                    ->field("a.*,b.name as aname,c.name as bname,IFNULL(sum(d.hk_money),0) as pk")
                    ->group("a.id")
                    ->select();

范例二

反复调用field(“a.*,IFNULL(SUM(b.number),0) as done_number,ROUND(100*(number-done_number)/number,2)”)

• IFNULL(SUM(b.number),0) as done_number
• ROUND(100*(number-done_number)/number,2)

    public function show_ones($id){
        // 对大资产ID下的信息全部查询
        $PropertyOne=new PropertyOneModel();
        $where[]=['a.pid',"=",$id];
        return $PropertyOne->alias("a")
                    ->leftJoin("lease b","b.po_id=a.id")
                    ->where($where)
                    ->field("a.*,IFNULL(SUM(b.number),0) as done_number,ROUND(100*(number-done_number)/number,2)")
                    ->group("a.id")
                    ->select();
    }

数据库中得有3个

• create_time
• update_time
• delete_time

且这三个为int 默认NULL

插入数据和修改数据 必须使用save
即使用对象操作。若使用insert 则不可以
create 和save 来实现时间戳

使用SAVE来插入数据：但是save返回值成功1 失败false 无法返回ID

$user = new User();
$user->name = 'thinkphp';
$user->save();
echo $user->create_time; // 输出类似 2016-10-12 14:20:10
echo $user->update_time; // 输出类似 2016-10-12 14:20:10

CREATE 来插入数据，可以返回ID

$userData = [
    'name' => '张三',
    'email' => 'zhangsan@example.com',
];
// 使用 create 方法插入数据

$user = User::create($userData);
echo $user->id;//插入后的ID

更新数据SAVE

#update
$result = User::where('id', $userId)->update($updateData);
$user=User::find($userId);
echo $user->update_time;//UPDATE时间

#save 1
$user=User::find($userId);
$user->name="Tom";
$user->save();
echo $user->update_time;//UPDATE时间

#save 2
$result = User::where('id', $userId)->save($updateData);
$user=User::find($userId);
echo $user->update_time;//UPDATE时间

配置：

<?php
namespace app\portal\model;
use think\facade\Db;
use think\Model;
use app\portal\model\LoanModel;
use think\model\concern\SoftDelete;

class HmModel extends Model
{
    /**
     * 模型名称
     * @var string
     */
    use SoftDelete;
    protected $name = 'hm';
    protected $autoWriteTimestamp=true;
    protected $deleteTime="delete_time";

软删除：必须使用对象操作

$Hm=new HmModel();
$j=$Hm->find(1);
$j->delete();
$j=$Hm->where('xh',11)->select();
$j->delete();

#或者
$j=$Hm->where('xh',11)->select()->delete();

软删除下的错误删除范例

$Hm->where('xh',11)->delete();

在软删除开启的情况下，上面的语句会执行失败！

gooey
pip install gooey -i https://mirrors.aliyun.com/pypi/simple

gooeypie 这个更方便，python>3.6即可
pip install gooeypie -i https://mirrors.aliyun.com/pypi/simple

gooeypie的文档：https://www.gooeypie.dev/widgetshttps://www.gooeypie.dev/widgets

综合来看 gooeypie非常方便，插个眼，以后备用。