mirror of
https://github.com/justhtmls/html-tools.git
synced 2026-08-31 02:03:51 +08:00
chao5
318 lines
8.9 KiB
HTML
318 lines
8.9 KiB
HTML
<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<link rel="icon" href="../../favicon.svg">
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>凯撒密码</title>
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<link rel="canonical" href="https://www.htmls.dev/tools/caesar-cipher/app.html">
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<style>
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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body {
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font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
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background: linear-gradient(135deg, #0ea5e9 0%, #0ea5e9 100%);
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min-height: 100vh;
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padding: 20px;
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}
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.container {
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max-width: 1200px;
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margin: 0 auto;
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}
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.header {
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text-align: center;
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color: white;
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margin-bottom: 30px;
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}
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.header h1 {
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font-size: 2.5rem;
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margin-bottom: 10px;
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}
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.card {
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background: rgba(255, 255, 255, 0.95);
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border-radius: 20px;
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padding: 30px;
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box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
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}
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.action-bar {
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display: flex;
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justify-content: space-between;
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align-items: center;
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margin-bottom: 20px;
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flex-wrap: wrap;
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gap: 15px;
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}
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.btn-group {
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display: flex;
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gap: 10px;
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flex-wrap: wrap;
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}
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.btn {
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padding: 12px 24px;
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border: none;
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border-radius: 10px;
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font-size: 14px;
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font-weight: 600;
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cursor: pointer;
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transition: all 0.3s;
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background: linear-gradient(135deg, #0ea5e9 0%, #0ea5e9 100%);
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color: white;
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}
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.btn:hover {
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transform: translateY(-2px);
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box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
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}
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.btn-secondary {
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background: #6c757d;
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}
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.editor-container {
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display: grid;
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grid-template-columns: 1fr 1fr;
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gap: 20px;
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}
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.editor-panel {
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background: #f8f9fa;
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border-radius: 12px;
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padding: 15px;
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display: flex;
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flex-direction: column;
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}
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.editor-header {
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display: flex;
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justify-content: space-between;
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align-items: center;
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margin-bottom: 10px;
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}
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.editor-title {
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font-weight: 600;
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color: #333;
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font-size: 1.1rem;
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}
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.editor-textarea {
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width: 100%;
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flex: 1;
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min-height: 320px;
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padding: 15px;
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border: 2px solid #e0e0e0;
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border-radius: 8px;
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font-family: 'Courier New', monospace;
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font-size: 14px;
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resize: none;
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transition: border-color 0.3s;
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}
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.editor-textarea:focus {
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outline: none;
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border-color: #0ea5e9;
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}
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.status-box {
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background: #e8f5e9;
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border-left: 4px solid #4caf50;
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padding: 12px 20px;
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border-radius: 8px;
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margin-bottom: 15px;
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display: none;
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}
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.status-box.error {
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background: #ffebee;
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border-left-color: #f44336;
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}
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.status-box.active {
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display: block;
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}
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.status-box p {
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color: #2e7d32;
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font-size: 14px;
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}
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.status-box.error p {
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color: #c62828;
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}
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.controls {
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display: flex;
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gap: 16px;
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flex-wrap: wrap;
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}
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.control {
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display: flex;
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flex-direction: column;
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gap: 6px;
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font-size: 14px;
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color: #333;
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}
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.control input,
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.control select,
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.control textarea {
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padding: 8px 10px;
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border-radius: 8px;
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border: 1px solid #d0d7de;
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font-size: 14px;
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}
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@media (max-width: 900px) {
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.editor-container {
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grid-template-columns: 1fr;
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}
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.editor-textarea {
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min-height: 240px;
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}
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}
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.tool-doc-link,
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.tool-home-link {
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position: fixed;
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top: 16px;
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padding: 6px 12px;
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border-radius: 999px;
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font-size: 12px;
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font-weight: 600;
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color: #0f172a;
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background: rgba(255, 255, 255, 0.9);
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border: 1px solid rgba(15, 23, 42, 0.12);
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text-decoration: none;
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letter-spacing: 0.02em;
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z-index: 9999;
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box-shadow: 0 6px 16px rgba(15, 23, 42, 0.08);
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transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
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}
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.tool-doc-link {
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right: 16px;
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}
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.tool-home-link {
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right: 74px;
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}
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.tool-doc-link:hover,
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.tool-home-link:hover {
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background: rgba(255, 255, 255, 1);
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border-color: rgba(15, 23, 42, 0.2);
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transform: translateY(-1px);
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}
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</style>
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</head>
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<body>
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<a class="tool-home-link" href="../../index.html">首页</a>
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<a class="tool-doc-link" href="index.html">说明</a>
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<div class="container">
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<div class="header">
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<h1>凯撒密码</h1>
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<p>使用凯撒密码对文本进行位移加密</p>
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</div>
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<div class="card">
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<div class="status-box" id="status-box">
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<p id="status-message">已完成转换</p>
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</div>
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<div class="action-bar">
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<div class="btn-group">
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<button class="btn" onclick="convert()">立即转换</button>
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<button class="btn btn-secondary" onclick="loadSample()">示例</button>
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<button class="btn btn-secondary" onclick="clearAll()">清空</button>
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</div>
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<div class="controls"><div class="control">
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<label for="shift">位移量</label>
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<input type="number" id="shift" value="3" min="-25" max="25">
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</div></div>
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</div>
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<div class="editor-container">
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<div class="editor-panel">
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<div class="editor-header">
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<span class="editor-title">输入</span>
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</div>
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<textarea class="editor-textarea" id="input" placeholder="输入英文文本..."></textarea>
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</div>
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<div class="editor-panel">
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<div class="editor-header">
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<span class="editor-title">输出</span>
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</div>
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<textarea class="editor-textarea" id="output" placeholder="凯撒密码结果将显示在这里..." readonly></textarea>
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</div>
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</div>
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</div>
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</div>
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<script>
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function caesarCipher(input, shift) {
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const s = ((shift % 26) + 26) % 26;
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return input.replace(/[a-zA-Z]/g, char => {
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const base = char <= "Z" ? 65 : 97;
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return String.fromCharCode(((char.charCodeAt(0) - base + s) % 26) + base);
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});
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}
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function transform(input) {
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const shift = parseInt(document.getElementById("shift").value, 10) || 0;
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return caesarCipher(input, shift);
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}
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function convert() {
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const input = document.getElementById('input').value;
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const statusBox = document.getElementById('status-box');
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const statusMessage = document.getElementById('status-message');
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const output = document.getElementById('output');
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if (!input.trim()) {
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statusBox.className = 'status-box error active';
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statusMessage.textContent = '请输入内容再转换';
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output.value = '';
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return;
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}
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try {
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const result = transform(input);
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output.value = result;
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statusBox.className = 'status-box active';
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statusMessage.textContent = '✓ 转换完成';
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} catch (error) {
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statusBox.className = 'status-box error active';
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statusMessage.textContent = '✗ 转换失败: ' + error.message;
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output.value = '';
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}
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}
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function clearAll() {
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document.getElementById('input').value = '';
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document.getElementById('output').value = '';
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document.getElementById('status-box').classList.remove('active');
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}
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function loadSample() {
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document.getElementById('input').value = `HELLO WORLD`;
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convert();
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}
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</script>
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<script src="../../assets/clicks.js" defer></script>
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</body>
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</html> |