企业如何高效转型?揭秘数字化设备折旧管理的神奇之处

// 设备折旧管理核心数据模型
public class Equipment
{
    public int Id { get; set; }
    public string Name { get; set; }
    public string Category { get; set; }
    public decimal PurchasePrice { get; set; }
    public DateTime PurchaseDate { get; set; }
    public int UsefulLife { get; set; } // 使用年限
    public decimal ResidualValue { get; set; } // 残值率
    public string DepreciationMethod { get; set; } // 折旧方法
    public List DepreciationRecords { get; set; }
}

public class DepreciationRecord
{
    public int Id { get; set; }
    public int EquipmentId { get; set; }
    public DateTime CalculationDate { get; set; }
    public decimal DepreciationAmount { get; set; }
    public decimal CurrentValue { get; set; }
    public Equipment Equipment { get; set; }
}

// 折旧计算核心算法
class DepreciationCalculator {
  // 直线法折旧计算
  static straightLineMethod(purchasePrice, residualRate, usefulLife) {
    const residualValue = purchasePrice * residualRate;
    const depreciableAmount = purchasePrice - residualValue;
    return depreciableAmount / usefulLife;
  }
  
  // 双倍余额递减法
  static doubleDecliningBalance(currentValue, residualRate, usefulLife) {
    const depreciationRate = 2 / usefulLife;
    return currentValue * depreciationRate;
  }
  
  // 年度折旧计划生成
  generateAnnualDepreciationPlan(equipment, startYear, endYear) {
    const plan = [];
    let currentValue = equipment.purchasePrice;
    
    for (let year = startYear; year <= endYear; year++) {
      const depreciation = this.calculateDepreciation(equipment, currentValue, year);
      currentValue -= depreciation;
      
      plan.push({
        year,
        depreciation,
        currentValue,
        isFullyDepreciated: currentValue <= equipment.purchasePrice * equipment.residualRate
      });
    }
    
    return plan;
  }
}

/* 折旧分析报表样式 */
.depreciation-report {
  margin: 20px 0;
  padding: 15px;
  background: #f8f9fa;
  border-radius: 8px;
}

.depreciation-chart {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 15px;
}

.chart-container {
  background: white;
  padding: 15px;
  border-radius: 6px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.metric-card {
  text-align: center;
  padding: 15px;
  border-left: 4px solid #5388ff;
}