0.96寸OLED生成图片

OLED使用

一．OLED生成图片

1.用画图生成打开

2.重新调整大小（保持纵横比不打钩）

3保存为单色图

4.打开取模软件PCtoLCD2002

5选择图形模式

6.设置如下

7.打开生成图片，生成字模

PS：在进行设置时，对C51格式里面的生成数组的行前，行后可根据需要进行修改。

自动生成验证码图片的工具类,收藏起来备用。

[原]自动生成验证码图片的工具类，收藏起来备用。用法：直接调用其静态方法即可。 Map map = ImageUtil.getImage();//获取图片，将图片转换成InputStream流 String key = map.keySet().iterator().next();//获取图片上的字符 BufferedImage image = map.get(key);//获取BufferedImage,赋值给imageStream其中，String为验证码的值，BufferedImage为验证码的图片。该工具类的代码如下：ImageUtil.java package action; import java.awt.Color; import java.awt.Font; import java.awt.Graphics; import java.awt.image.BufferedImage; import java.util.HashMap; import java.util.Map; import java.util.Random; public final class ImageUtil { private static final String[] chars = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F", "G", "H", "I", "东", "南", "西", "北", "中", "发", "白" }; private static final int SIZE = 5;//验证码长度 private static final int LINES = 20;//干扰线条数 private static final int WIDTH = 200;//图片宽度 private static final int HEIGHT = 100;//图片高度 private static final int FONT_SIZE = 60;//字体高度 public static Map getImage() { StringBuffer sb = new StringBuffer(); BufferedImage image = new BufferedImage(WIDTH, HEIGHT, BufferedImage.TYPE_INT_RGB); Graphics graphic = image.getGraphics(); graphic.setColor(Color.LIGHT_GRAY); graphic.fillRect(0, 0, WIDTH, HEIGHT); Random ran = new Random(); //画随机字符 for(int i=1;i<=SIZE;i++){ int r = ran.nextInt(chars.length); graphic.setColor(getRandomColor()); graphic.setFont(new Font(null,Font.BOLD+Font.ITALIC,FONT_SIZE));

C#生成随机验证码例子

C#生成随机验证码例子：前端： 1 2 3验证码： 4 5 6 给验证码图片绑定单击事件： $("#valiateCode").click(function () { $("#imgCode").attr("src",$("#imgCode").attr("src")+1); }); 后台生成验证码图片代码： ValidateCode.ashx 1 <%@ WebHandler Language="C#" Class="ValidateCode" %> 2 3using System; 4using System.Web; 5using System.Drawing; 6using System.Web.SessionState; 7 8public class ValidateCode : IHttpHandler, IRequiresSessionState 9 { 10 HttpContext context; 11public void ProcessRequest (HttpContext context1) { 12this.context = context1; 13 CreateCheckCodeImage(GenerateCheckCode()); 14 }

c#生成验证码的方法

新建一个WaterMark.ASHX文件，将如下代码Copy进去 <%@ WebHandler Language="C#" Class="WaterMark" %> using System; using System.Web; using System.Drawing; using System.Drawing.Drawing2D; using System.Web.SessionState; public class WaterMark : IHttpHandler, IRequiresSessionState // 要使用session必须实现该接口,记得要导入System.Web.SessionState命名空间 { public void ProcessRequest(HttpContext context) { string checkCode = GenCode(5); // 产生5位随机字符 context.Session["Code"] = checkCode; //将字符串保存到Session中，以便需要时进行验证 System.Drawing.Bitmap image = new System.Drawing.Bitmap(70, 22); Graphics g = Graphics.FromImage(image); try { //生成随机生成器 Random random = new Random(); //清空图片背景色 g.Clear(Color.White); // 画图片的背景噪音线 int i; for (i = 0; i < 25; i++) { int x1 = random.Next(image.Width); int x2 = random.Next(image.Width); int y1 = random.Next(image.Height); int y2 = random.Next(image.Height); g.DrawLine(new Pen(Color.Silver), x1, y1, x2, y2); } Font font = new System.Drawing.Font("Arial", 12, (System.Drawing.FontStyle.Bold)); System.Drawing.Drawing2D.LinearGradientBrush brush = new System.Drawing.Drawing2D.LinearGradientBrush(new Rectangle(0, 0, image.Width, image.Height), Color.Blue, Color.DarkRed, 1.2F, true); g.DrawString(checkCode, font, brush, 2, 2);

实用的JavaScript验证码生成代码

实用的 JavaScript 验证码生成代码-JAVA:https://www.360docs.net/doc/224120607.html,