Merge branch 'cmy' into 'main'

Verification code function test demonstration See merge request !4

Merge branch 'cmy' into 'main'
59cc9a6d · Mingyuan Chen · e727a4b1 · 99cc6202 · 59cc9a6d
Commit 59cc9a6d authored 9 months ago by Mingyuan Chen
--- a/verificationcodedemo.html
+++ b/verificationcodedemo.html
+<!doctype html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>js简单验证码使用</title>
+<style>
+    .code {
+        font-family: Arial;
+        font-style: italic;
+        color: blue;
+        font-size: 30px;
+        border: 0;
+        padding: 2px 3px;
+        letter-spacing: 3px;
+        font-weight: bolder;
+        float: left;
+        cursor: pointer;
+        width: 150px;
+        height: 50px;
+        line-height: 60px;
+        text-align: center;
+        vertical-align: middle;
+        background-color: #D8B7E3;
+    }
+    span {
+        text-decoration: none;
+        font-size: 12px;
+        color: #288bc4;
+        padding-left: 10px;
+    }
+    span:hover {
+        text-decoration: underline;
+        cursor: pointer;
+    }
+</style>
+</head>
+<script>
+    // 页面加载时，生成随机验证码
+    window.onload = function () {
+        createCode(4);
+    }
+
+    // 生成验证码的方法
+    function createCode(length) {
+        var code = "";
+        var codeLength = parseInt(length); // 验证码的长度
+        var checkCode = document.getElementById("checkCode");
+        // 所有候选组成验证码的字符
+        var codeChars = 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',
+            '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');
+        // 循环组成验证码的字符串
+        for (var i = 0; i < codeLength; i++) {
+            // 获取随机验证码下标
+            var charNum = Math.floor(Math.random() * 62);
+            // 组合成指定字符验证码
+            code += codeChars[charNum];
+        }
+        if (checkCode) {
+            // 为验证码区域添加样式名
+            checkCode.className = "code";
+            // 将生成验证码赋值到显示区
+            checkCode.innerHTML = code;
+        }
+    }
+
+    // 检查验证码是否正确
+    function validateCode() {
+        // 获取显示区生成的验证码
+        var checkCode = document.getElementById("checkCode").innerHTML;
+        // 获取输入的验证码
+        var inputCode = document.getElementById("inputCode").value;
+        console.log(checkCode);
+        console.log(inputCode);
+        if (inputCode.length <= 0) {
+            alert("请输入验证码！");
+        } else if (inputCode.toUpperCase() != checkCode.toUpperCase()) {
+            alert("验证码输入有误！");
+            createCode(4);
+        } else {
+            alert("验证码正确！");
+        }
+    }
+</script>
+<body>
+    <div>
+        <table border="0" cellspacing="5" cellpadding="5">
+            <tr>
+                <td> <div id="checkCode" class="code" onclick="createCode(4)"></div></td>
+                <td> <span onclick="createCode(4)">看不清换一张</span></td>
+            </tr>
+            <tr>
+                <td>验证码：</td>
+                <td><input type="text" id="inputCode" style="float:left;" /></td>
+            </tr>
+            <tr>
+                <td></td>
+                <td><input type="button" onclick="validateCode()" value="确定" /></td>
+            </tr>
+        </table>
+    </div>
+</body>
+</html>