自研电商售后管理系统开发流程：需求评审→原型设计→测试上线，全周期管理

// 售后服务接口定义示例
public interface IAfterSaleService
{
    // 创建售后申请
    Task CreateAfterSaleRequest(AfterSaleRequest request);
    
    // 处理退款申请
    Task ProcessRefund(RefundRequest request);
    
    // 获取售后状态
    Task GetRequestStatus(string requestId);
}

-- 售后工单表结构设计
CREATE TABLE AfterSaleRequests (
    RequestId VARCHAR(50) PRIMARY KEY,
    OrderId VARCHAR(50) NOT NULL,
    CustomerId INT NOT NULL,
    RequestType INT NOT NULL, -- 1:退货, 2:换货, 3:维修
    Status INT NOT NULL DEFAULT 1, -- 状态:1待处理,2处理中,3已完成
    CreateTime DATETIME DEFAULT GETDATE(),
    UpdateTime DATETIME DEFAULT GETDATE(),
    Description NVARCHAR(500),
    CONSTRAINT FK_AfterSale_Orders FOREIGN KEY (OrderId) REFERENCES Orders(OrderId)
);

// 售后状态管理组件
class AfterSaleStatus extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      requests: [],
      loading: true
    };
  }

  // 获取售后请求列表
  async fetchRequests() {
    try {
      const response = await fetch('/api/after-sale/requests');
      const data = await response.json();
      this.setState({ requests: data, loading: false });
    } catch (error) {
      console.error('获取售后数据失败:', error);
    }
  }

  componentDidMount() {
    this.fetchRequests();
  }

  render() {
    // 组件渲染逻辑
  }
}

// 售后服务单元测试示例
[TestClass]
public class AfterSaleServiceTests
{
    [TestMethod]
    public async Task ProcessRefund_ValidRequest_ReturnsSuccess()
    {
        // 准备测试数据
        var refundRequest = new RefundRequest {
            RequestId = "TEST_001",
            Amount = 100.00m,
            Reason = "商品质量问题"
        };

        // 执行测试
        var service = new AfterSaleService();
        var result = await service.ProcessRefund(refundRequest);

        // 验证结果
        Assert.IsTrue(result.IsSuccess);
        Assert.AreEqual("退款处理成功", result.Message);
    }
}