📄 welcome.jsp
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<%@page contentType="text/html"%><%@page pageEncoding="UTF-8"%><!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>无标题页</title><style type="text/css">.code{background-image:url(code.jpg);font-family:Arial;font-style:italic;color:Red;border:0;padding:2px 3px;letter-spacing:3px;font-weight:bolder;}.unchanged{border:0;}</style><script language="javascript" type="text/javascript">var code ; //在全局 定义验证码function createCode(){ code = "";var codeLength = 6;//验证码的长度var checkCode = document.getElementById("checkCode");var selectChar = new Array(0,1,2,3,4,5,6,7,8,9,'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z');//所有候选组成验证码的字符，当然也可以用中文的for(var i=0;i<codeLength;i++){var charIndex = Math.floor(Math.random()*36);code +=selectChar[charIndex];}// alert(code);if(checkCode){checkCode.className="code";checkCode.value = code;}}function validate (){var inputCode = document.getElementById("input1").value;if(inputCode.length <=0){alert("请输入验证码！");}else if(inputCode != code ){alert("验证码输入错误！");createCode();//刷新验证码}else{alert("^-^ OK");}}</script></head><body><form action="#"><input type="text" onclick="createCode()" id="input1" /><input type="text" id="checkCode" class="unchanged" style="width: 80px" /><br /><input id="Button1" onclick="validate();" type="button" value="确定" /> </form></body></html>html>⌨️ 快捷键说明
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