55 lines
1.6 KiB
JavaScript
55 lines
1.6 KiB
JavaScript
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// 自定义JavaScript函数
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// 显示加载动画
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function showLoading() {
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const loadingElement = document.getElementById('loading');
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if (loadingElement) {
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loadingElement.style.display = 'block';
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}
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}
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// 隐藏加载动画
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function hideLoading() {
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const loadingElement = document.getElementById('loading');
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if (loadingElement) {
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loadingElement.style.display = 'none';
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}
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}
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// 显示通知
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function showNotification(message, type = 'info') {
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// 创建通知元素
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const alertDiv = document.createElement('div');
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alertDiv.className = `alert alert-${type} alert-dismissible fade show`;
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alertDiv.innerHTML = `
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${message}
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<button type="button" class="btn-close" data-bs-dismiss="alert"></button>
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`;
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// 插入到页面中
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const container = document.querySelector('main') || document.body;
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container.insertBefore(alertDiv, container.firstChild);
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// 5秒后自动隐藏
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setTimeout(() => {
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if (alertDiv.parentNode) {
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alertDiv.remove();
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}
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}, 5000);
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}
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// 格式化日期
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function formatDate(dateString) {
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if (!dateString) return '-';
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const date = new Date(dateString);
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return date.toLocaleDateString('zh-CN') + ' ' + date.toLocaleTimeString('zh-CN');
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}
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// 格式化文件大小
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function formatFileSize(bytes) {
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if (bytes === 0) return '0 Bytes';
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const k = 1024;
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const sizes = ['Bytes', 'KB', 'MB', 'GB'];
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const i = Math.floor(Math.log(bytes) / Math.log(k));
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return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
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}
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