问题描述
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.drawing2d;
using System.Drawing.Imaging;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace generateFonts
{
public partial class Form1 : Form
{
string font = "";
float fontSize = 0;
FontStyle fontStyle = FontStyle.Regular;
public Form1()
{
InitializeComponent();
comboBox1.Selectedindex = 0;
comboBox2.Selectedindex = 0;
comboBox3.Selectedindex = 0;
font = comboBox1.SelectedItem.ToString();
fontSize = Convert.ToInt32(comboBox2.SelectedItem);
fontStyle = FontStyle.Regular;
}
private void comboBox1_SelectedindexChanged(object sender,EventArgs e)
{
font = comboBox1.SelectedItem.ToString();
}
private void comboBox2_SelectedindexChanged(object sender,EventArgs e)
{
fontSize = Convert.ToInt32(comboBox2.SelectedItem);
}
private void comboBox3_SelectedindexChanged(object sender,EventArgs e)
{
if (comboBox3.Selectedindex == 0)
fontStyle = FontStyle.Regular;
else if (comboBox3.Selectedindex == 1)
fontStyle = FontStyle.Italic;
else if(comboBox3.Selectedindex == 2)
fontStyle = FontStyle.Bold;
}
private async void button1_Click(object sender,EventArgs e)
{
await Task.Run(() => StartProcess(1));
}
private void StartProcess(int runs)
{
// Font
Font myFont = new Font(font,fontSize,fontStyle);
List<string> bytes = new List<string>();
string[] bits = { "0","0","0" };
byte bitPos = 0;
for (byte i = 32; i < 126; i++)
{
//Create a Image-Object on which we can paint
Image bmp = new Bitmap(200,200);
//Create the Graphics-Object to paint on the Bitmap
Graphics g = Graphics.FromImage(bmp);
string c = Convert.tochar(i).ToString();
//Get the perfect Image-Size so that Image-Size = String-Size
Sizef size = g.MeasureString(c,myFont);
//Use this to become better Text-Quality on Bitmap.
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.PixelOffsetMode = PixelOffsetMode.HighQuality;
//Here we draw the string on the Bitmap
g.DrawString(c,myFont,new SolidBrush(Color.Black),0);
if (!Directory.Exists("FontBmps"))
Directory.CreateDirectory("FontBmps");
this.Invoke((MethodInvoker)delegate ()
{
pictureBox2.Width = Convert.ToInt32(size.Width);
pictureBox2.Height = Convert.ToInt32(size.Height);
pictureBox2.Image = bmp; // <--- this is working and the pictureBox shows the bmp correctly
bmp.Save("FontBmps/" + i + "_" + font + "_" + fontSize + "px_" + fontStyle + ".bmp",ImageFormat.Bmp); // <--- error here: this saves a black square instead of the bmp i see displayed in the pictureBox GUI ??
// Even if i save the pictureBox itself that too is just a black square instead of the correct image shown in the GUI ??
// Now convert the bmp to a HEX array of pixels
for (int h = 0; h < pictureBox2.Height; h++)
{
for (int w = 0; w < pictureBox2.Width; w++)
{
Color colour = (pictureBox2.Image as Bitmap).GetPixel(w,h);
if (colour.R == 0 && colour.G == 0 && colour.B == 0)
{
bits[bitPos] = "1";
}
else
{
bits[bitPos] = "0"; // <-- never hits me,again for some reason the bmp or pictureBox is all black pixels data but i see it correctly show in the pictureBox GUI ??
}
if (bitPos < 7)
bitPos++;
else
{
//string bitStr = bits.ToString();
//string hex = Convert.ToByte(bitStr,2).ToString("x2");
//bytes.Add(hex);
bitPos = 0;
for(byte n = 0; n < 8; n++)
{
bits[n] = "0";
}
}
}
}
if (bitPos != 0)
{
// TO DO...
}
});
Thread.Sleep(500); // <--- i have this just to see it displaying the chars but i have removed it with no effect to the issue
}
// Now add List to a file in the correct format
foreach (string str in bytes)
{
Console.WriteLine(str);
// TO DO...
}
}
}
}
所以我想在 sql 中使用 select distinct patientID
from [dbo]..HPrecords
where ptprocess = 'refill'
and pTDescription <> 'Success'
and patientID is not null
and patiententrytime > '2021-04-06'
and patientID not in (
select distinct patientID
from [dbo]..HPrecords
where ptprocess = 'embossing'
and ptDescription = 'Success'
and patientID is not null
and patiententrytime > '2021-04-06'
)
功能来过滤出尚未收到补充药物的患者。一个病人可以多次补充，第一次可能会失败，但第二次或第三次可能会成功。所以可以有多行。
所以我只想编写一个查询，该查询将过滤掉并为我获取无论多少次都没有成功重新填充的患者 ID。
这是最好的写法吗，我当前的查询还在运行，我觉得逻辑不对？
我想尝试在没有 CTE 或临时表的情况下编写此查询，作为练习。
示例输出：
NOT IN解决方法
我个人更喜欢加入而不是加入。看起来更整洁，读起来更好，并且如果您需要分析异常，则允许访问两个表上的信息。我和一位同事曾经做过一些非常基本的性能比较，并没有显着差异。
这是我的看法..
select distinct hpr.patientID
from [dbo].HPrecords hpr
LEFT OUTER JOIN
[dbo].HPrecords hpr_val ON
hpr.patientID = hpr_val.patientID
AND hpr_val.ptprocess = 'embossing'
AND hpr_val.ptDescription = 'Success'
and hpr_val.patiententrytime > '20`enter code here`21-04-06'
where hpr.ptprocess = 'refill'
and hpr.pTDescription <> 'Success'
--and hpr.patientID is not null -- Not necessary because you will always have records in this table in this scenario
and hpr.patiententrytime > '2021-04-06'
AND hpr_Val.PatietID IS NULL
在模式和表名之间的额外点上......正如 Smor 指出的那样，它没有必要（甚至可能会破坏查询），而是在指向数据库时不想引用模式时使用和桌子。
- 长路漫漫：[database].[schema].[table] -- 示例 [MyDatabase].[dbo].[MyTable]
- 捷径：[database]..[table] -- 示例 [MyDatabase]..[MyTable]