JustHTML/Tools/RandomNumberGenerator.html at main · X-starRelight/JustHTML · GitHub

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>随机数生成器 - JustHTML 只需网页</title>
  <script>
/**
 * 动态加载（强制去除缓存） CSS 的函数
 * @param {string} src - 要加载的 CSS 的 src 链接
 * @returns {Promise} 返回一个 Promise 对象，用于处理异步加载
 */
function loadStyle(src) {
  return new Promise((resolve, reject) => {
    const link = document.createElement('link');
    link.rel = 'stylesheet';
    link.href = src + '?v=' + new Date().getTime(); // 使用时间戳避免缓存
    link.async = true;
    link.onload = resolve;
    link.onerror = reject;
    document.head.appendChild(link);
  });
}

/**
 * 动态加载（强制去除缓存） JS 的函数
 * @param {string} src - 要加载的 JS 的 src 链接
 * @returns {Promise} 返回一个 Promise 对象，用于处理异步加载
 */
function loadScript(src) {
  return new Promise((resolve, reject) => {
    const script = document.createElement('script');
    script.src = src + '?v=' + new Date().getTime(); // 使用时间戳避免缓存
    script.async = true;
    script.onload = resolve;
    script.onerror = reject;
    document.head.appendChild(script);
  });
}
</script>

  <script>
    loadStyle('../assets/style.css')
    let scriptArray = [
      "../assets/AddHeader_Tools.js",
      "../assets/AddFooter.js",
      "../assets/AddIco.js",
      "../assets/AutoRun.js",
    ]

    scriptArray.forEach(script => {
      loadScript(script);
    });
  </script>

  <script src="../package/Vue/code/vue.global.prod.js"></script>
  <script type="module" src="../package/Sober/code/main.js"></script>

  <style>
    .generator-settings {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 15px;
      margin: 15px 0;
    }

    .setting-group {
      display: flex;
      flex-direction: column;
    }

    .setting-group label {
      margin-bottom: 5px;
      color: var(--accent-color);
    }

    .setting-group input, .setting-group select {
      padding: 8px;
    }

    .controls {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin: 15px 0;
      justify-content: center;
    }

    .info-box {
      background-color: var(--bg-tertiary);
      padding: 10px;
      border-radius: var(--border-radius);
      margin: 10px 0;
    }

    .result-container {
      margin: 20px 0;
      padding: 15px;
      background-color: var(--bg-tertiary);
      border-radius: var(--border-radius);
      text-align: center;
    }

    .result-number {
      font-size: 2.5em;
      font-weight: bold;
      color: var(--accent-color);
      margin: 10px 0;
      min-height: 50px;
    }

    .result-list {
      margin: 15px 0;
      text-align: left;
    }

    .result-list li {
      padding: 5px 0;
      border-bottom: 1px solid var(--border-color);
    }

    .result-list li:last-child {
      border-bottom: none;
    }

    .history-container {
      margin-top: 20px;
      padding: 15px;
      background-color: var(--bg-tertiary);
      border-radius: var(--border-radius);
    }

    .history-item {
      padding: 5px 0;
      border-bottom: 1px solid var(--border-color);
    }

    .history-item:last-child {
      border-bottom: none;
    }
  </style>
</head>
<body>
  <div id="app">
    <div class="container">
      <a href="../index.html" class="back-link">← 返回首页</a>

      <div class="tool-section">
        <h2>随机数生成器</h2>
        <p>生成指定范围内的随机数</p>

        <div class="info-box">
          <p><strong>功能说明：</strong></p>
          <p>• 可设置最小值和最大值范围</p>
          <p>• 支持生成单个或多个随机数</p>
          <p>• 可选择是否允许重复</p>
          <p>• 提供随机数历史记录</p>
        </div>

        <div class="generator-settings">
          <div class="setting-group">
            <label for="minValue">最小值</label>
            <input
              type="number"
              id="minValue"
              v-model.number="minValue"
              placeholder="最小值"
            >
          </div>

          <div class="setting-group">
            <label for="maxValue">最大值</label>
            <input
              type="number"
              id="maxValue"
              v-model.number="maxValue"
              placeholder="最大值"
            >
          </div>

          <div class="setting-group">
            <label for="quantity">生成数量</label>
            <input
              type="number"
              id="quantity"
              v-model.number="quantity"
              min="1"
              max="100"
              placeholder="数量"
            >
          </div>

          <div class="setting-group">
            <label for="allowDuplicates">重复选项</label>
            <select id="allowDuplicates" v-model="allowDuplicates">
              <option value="true">允许重复</option>
              <option value="false">不允许重复</option>
            </select>
          </div>
        </div>

        <div class="controls">
          <button @click="generateRandomNumbers">生成随机数</button>
          <button @click="clearResults">清空结果</button>
          <button @click="setDefaults">重置设置</button>
        </div>

        <div class="result-container">
          <h3>生成结果</h3>
          <div class="result-number" v-if="results.length === 1">
            {{ results[0] }}
          </div>

          <div class="result-list" v-if="results.length > 1">
            <ol>
              <li v-for="(num, index) in results" :key="index">
                {{ num }}
              </li>
            </ol>
          </div>

          <p v-if="results.length === 0">点击上方按钮生成随机数</p>
        </div>

        <div class="history-container" v-if="history.length > 0">
          <h3>生成历史</h3>
          <div v-for="(item, index) in recentHistory" :key="index" class="history-item">
            <strong>{{ item.time }}:</strong>
            <span v-if="item.numbers.length === 1">{{ item.numbers[0] }}</span>
            <span v-else>{{ item.numbers.join(', ') }}</span>
            <br>
            <small>范围: {{ item.min }} ~ {{ item.max }}, 数量: {{ item.count }}</small>
          </div>

          <button @click="clearHistory" style="margin-top: 10px;">清空历史</button>
        </div>
      </div>
    </div>
  </div>

  <script>
    const { createApp, ref, computed } = Vue;

    createApp({
      setup() {
        const minValue = ref(1);
        const maxValue = ref(100);
        const quantity = ref(1);
        const allowDuplicates = ref(true);
        const results = ref([]);
        const history = ref([]);

        // 最近的历史记录（限制为10条）
        const recentHistory = computed(() => {
          return [...history.value].reverse().slice(0, 10);
        });

        // 生成随机数
        const generateRandomNumbers = () => {
          // 验证输入
          if (minValue.value >= maxValue.value) {
            alert('最小值必须小于最大值');
            return;
          }

          if (quantity.value <= 0 || quantity.value > 100) {
            alert('生成数量必须在1到100之间');
            return;
          }

          // 如果不允许重复，检查范围是否足够大
          if (allowDuplicates.value === 'false' && (maxValue.value - minValue.value + 1) < quantity.value) {
            alert(`在范围${minValue.value}-${maxValue.value}内无法生成${quantity.value}个不重复的数`);
            return;
          }

          results.value = [];

          if (quantity.value === 1) {
            // 生成单个随机数
            const randomNum = Math.floor(Math.random() * (maxValue.value - minValue.value + 1)) + minValue.value;
            results.value = [randomNum];
          } else {
            if (allowDuplicates.value === 'true') {
              // 允许重复
              for (let i = 0; i < quantity.value; i++) {
                const randomNum = Math.floor(Math.random() * (maxValue.value - minValue.value + 1)) + minValue.value;
                results.value.push(randomNum);
              }
            } else {
              // 不允许重复
              const availableNumbers = [];
              for (let i = minValue.value; i <= maxValue.value; i++) {
                availableNumbers.push(i);
              }

              // 随机打乱数组并取前quantity个
              for (let i = availableNumbers.length - 1; i > 0; i--) {
                const j = Math.floor(Math.random() * (i + 1));
                [availableNumbers[i], availableNumbers[j]] = [availableNumbers[j], availableNumbers[i]];
              }

              results.value = availableNumbers.slice(0, quantity.value);
            }
          }

          // 添加到历史记录
          history.value.push({
            time: new Date().toLocaleTimeString(),
            numbers: [...results.value],
            min: minValue.value,
            max: maxValue.value,
            count: quantity.value
          });
        };

        // 清空结果
        const clearResults = () => {
          results.value = [];
        };

        // 重置设置为默认值
        const setDefaults = () => {
          minValue.value = 1;
          maxValue.value = 100;
          quantity.value = 1;
          allowDuplicates.value = true;
          clearResults();
        };

        // 清空历史
        const clearHistory = () => {
          history.value = [];
        };

        return {
          minValue,
          maxValue,
          quantity,
          allowDuplicates,
          results,
          history,
          recentHistory,
          generateRandomNumbers,
          clearResults,
          setDefaults,
          clearHistory
        };
      }
    }).mount('#app');
  </script>
</body>
</html>