Function showSkeleton

webdev/src/ui-renderer.ts:103–114

(containerId: string, lineCount: number = 3)

 * 数据还没加载完时显示灰色条纹动画，告诉用户"正在加载中"
 */
export function showSkeleton(containerId: string, lineCount: number = 3): void {
    const el = document.getElementById(containerId);
    if (!el) return;

    el.innerHTML = '';
    for (let i = 0; i < lineCount; i++) {
        const line = document.createElement('div');
        // 最后一行短一点，看起来更自然
        line.className = 'skeleton skeleton-line' + (i === lineCount - 1 ? ' short' : '');
        el.appendChild(line);
    }
}

/**
 * 隐藏骨架屏