js生成验证码】的更多相关文章

示例代码: var svgCaptcha = require('svg-captcha'); var fs = require('fs'); var codeConfig = { size: 5,// 验证码长度 ignoreChars: '0o1i', // 验证码字符中排除 0o1i noise: 2, // 干扰线条的数量 height: 44 } var captcha = svgCaptcha.create(codeConfig); fs.writeFileSync('test.png…
实现代码: <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <head> <meta charset="UTF-8"> <title></title> </head> <style type="text/css"> .code { backgroun…
效果图如下: <canvas id="canvas1" style="margin-left: 200px;"></canvas><br /> <button id="btnRefresh" style="position: relative;left: 200px;">看不清,刷新一下</button> <script> /*定义函数生成随机颜色*/ f…
<html> <head> <title>验证码</title> <style type="text/css"> #code { font-family:Arial; font-style:italic; font-weight:bold; border:0; letter-spacing:2px; color:blue; } </style> <script type = "text/javasc…
前台代码: <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtm…
   <style type="text/css">        .code        {            font-family: Arial;            font-style: italic;            color: Red;            border: 0;            padding: 2px 3px;            letter-spacing: 3px;            font-weight…
<html> <head> <title>验证码</title> <style type="text/css"> #code { font-family:Arial; font-style:italic; font-weight:bold; border:0; letter-spacing:2px; color:blue; } </style> <script type = "text/javasc…
<!Doctype html> <html> <head> <meta charset="utf-8"/> <title>验证码 </title> <style type="text/css"> *{ margin:0; padding:0; } a{ text-decoration: none; } .main_bar{ width:100%; height: 350px; mar…
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"> <head>  <title>验证码</title>  &l…
一.预备知识 Math.ceil();  //向上取整. Math.floor();  //向下取整. Math.round();  //四舍五入. Math.random();  //0.0 ~ 1.0 之间的一个伪随机数.[包含0不包含1] //比如0.8647578968666494 Math.ceil(Math.random()*10);      // 获取从1到10的随机整数 ,取0的概率极小. Math.round(Math.random());   //可均衡获取0到1的随机整数…