小编D T*_*D T的帖子

在 .NET 中，我可以通过以下代码格式化数字：

Dim num = 1234567.8933
Dim res = num.ToString("#,##0.00")

结果： res= 1,234,567.89

我想"#,##0.00"在 JavaScript 中使用这种格式。它是否支持按字符串格式格式化数字？

我习惯CommandTimeout=5设置超时，但不行。

这是我的代码：

Dim con As New NpgsqlConnection
        Dim cmd As New NpgsqlCommand
        Dim conStr As String
        Try
            Dim sql = "Select * from dat_extract_text a join dat_replace_text b on a.tm_id=b.tm_id 
join dat_base_text_dt c on c.tm_id=a.tm_id
join dat_base_text_dt_font d on d.tm_id=c.tm_id
limit 250000"
            conStr = "Server=192.168.1.10;Port=5434;UserId=testuser;Password=1234;Database=testdb;CommandTimeout=5;"
            con.ConnectionString = conStr
            con.Open()

            cmd.Connection = con
            cmd.CommandText = sql

            Dim st = DateTime.Now
            Dim rs = cmd.ExecuteNonQuery
            Dim et = DateTime.Now
            Dim t = (et - st).TotalSeconds           
        Catch ex As Exception
        End …

这是我的数据。它有 7 个图像：

我autokeras 用来训练：

import tensorflow as tf
import numpy as np
import autokeras as ak
from tensorflow.keras.preprocessing import image

BATCH_SIZE = 32
IMG_HEIGHT = 224
IMG_WIDTH = 224
train_data_dir = "E:\\DemoTensorflow\\NhanDienDoiTuong\\Data\\Traintest"


def preprocess(img):
    img = image.array_to_img(img, scale=False)
    img = img.resize((IMG_WIDTH, IMG_HEIGHT))
    img = image.img_to_array(img)
    return img / 255.0


image_generator = tf.keras.preprocessing.image.ImageDataGenerator(
    rescale=1.0 / 255,
    horizontal_flip=True,
    validation_split=0.2,
    preprocessing_function=preprocess,
)

train_generator = image_generator.flow_from_directory(
    directory=train_data_dir,
    batch_size=BATCH_SIZE,
    shuffle=True,
    target_size=(IMG_HEIGHT, IMG_WIDTH),
    subset="training",
)

val_generator = image_generator.flow_from_directory(
    directory=train_data_dir,
    batch_size=BATCH_SIZE,
    shuffle=True,
    # class_mode="categorical",
    target_size=(IMG_HEIGHT, …

我的代码在捕获图像时设置自动对焦:

ShutterCallback _pfnShutterCallback = new ShutterCallback() {

            @Override
            public void onShutter() {
                // TODO Auto-generated method stub

            }

        };

        PictureCallback _pfnRawPictureCallback = new PictureCallback() {

            @Override
            public void onPictureTaken(byte[] data, Camera camera) {
                // TODO Auto-generated method stub

            }
        };

//自动对焦回叫

        private AutoFocusCallback _pfnAutoFocusCallback = new AutoFocusCallback() {

            @Override
            public void onAutoFocus(boolean success, Camera camera) {
                // TODO Auto-generated method stub
                camera.autoFocus(null);
                camera.takePicture(_pfnShutterCallback, _pfnRawPictureCallback,
                        mPicture);

            }
        };

//开始捕获图片回叫并保存图像...

private PictureCallback mPicture = new PictureCallback() {

        public void onPictureTaken(byte[] data, Camera …

我有一个表A为：

Col1   Col2
1     D:\Akagane2\Source\SubModule\ExtractText.vb
2     D:\Akagane2\Source\SubModule\ExtractText.vb

我想选择输出一个表的数据为

Col1    Col2
1       ExtractText.vb
2       ExtractText.vb

在postgresql中选择，您能帮我吗？

我的代码在Adobe Script(.jsx)中将文本写入文件:

 var xml=  " ?????? Pro"

  var file = new File(output);
  file.open("w");   
  file.write(xml);
  file.close();

但是结果编码UTF-8无法显示: ?????? Pro 它只能显示文本 " ?????? Pro",如果设置了文件编码Shift-JIS.

如何通过编码UTF-8将文本写入文件？

默认限制：文件大小限制设置为26214400字节。如果我扫描的文件大小> 25mb，将发生错误。

The maximum stream size of 26214400 bytes has been exceeded.

我尝试更改：

 public ClamClient(string server, int port)
        {
            MaxChunkSize = 131072; //128k
            MaxStreamSize = 209715200; //200mb ,- 26214400; //25mb
            Server = server;
            Port = port;
        }

但是在扫描文件时会发生错误：

Unable to write data to the transport connection: An existing connection was forcibly closed by the remote host.

如何在Windows中更改Clamd服务的限制文件大小？

谢谢大家

这是我的设定:

$DBH = new PDO(
        "pgsql:host=$host;dbname=$dbname", 
        $username, 
        $password,
        array(
            PDO::ATTR_TIMEOUT => 60,
            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
        )
    );

这是20多岁后的时间.但如果我设定 PDO::ATTR_TIMEOUT => 5,它会在5秒后超时.

为什么不能增加连接超时？我使用xampp 3.2.2,数据库Postgresql 9.2我在本地测试,不存在反病毒.

这是我的代码,但它不起作用:

strText = oSheet.Cells(1, 1).Text
If InStr(strText, "\") > 0 Then
    bPrice = True       
End If

如何检查字符串中是否存在"\"？

我已经安装了 Imagick：

download:
https://windows.php.net/downloads/pecl/snaps/imagick/3.4.3/php_imagick-3.4.3-7.2-ts-vc15-x64.zip
https://windows.php.net/downloads/pecl/deps/ImageMagick-7.0.7-11-vc15-x64.zip
extract php_imagick.dll to ext/
extract ImageMagick-7.0.7 to one path
ADD ImageMagick-7.0.7/bin to SYSTEM PATH
ADD "extension=imagick" in php.ini
ADD LoadFile "/yourImageMagickPath/bin/CORE_RL_Magick++_.dll" in httpd.conf

的结果phpinfo：

我尝试在控制器中测试：

 public function index()
    {
        $im = new Imagick();
        $im->newPseudoImage(100, 100, "magick:rose");
        $im->setImageFormat("png");
        $im->roundCorners(5,3);
        $type=$im->getFormat();
        header("Content-type: $type");
        echo $im->getimageblob();
        return view('home');
    }

出现错误：

Class 'App\Http\Controllers\Imagick' not found

为什么 Laravel 7.0 中没有找到 Imagick 类？