内存性能的最佳实践

Question

我有以下代码。我们争论过哪种方法对内存性能更好。如果我们不使用单独的变量并使用它，它会有什么不同吗？它会影响那么这是可能的解决方案吗？

    /// <summary>
    /// Treatment Point Types
    /// </summary>
    public string DWTreatment
    {
        get
        {
            StringBuilder sbStatus = new StringBuilder();
            .........

        }

        set
        {
            chkTreatSR.Checked = value.Split(',').Contains(((int)AgencyListReportTemplate.SamplingPointTypesEnum.SR).ToString());
            chkTreatIT.Checked = value.Split(',').Contains(((int)AgencyListReportTemplate.SamplingPointTypesEnum.IT).ToString());
            chkTreatEP.Checked = value.Split(',').Contains(((int)AgencyListReportTemplate.SamplingPointTypesEnum.EP).ToString());
            chkTreatWW.Checked = value.Split(',').Contains(((int)AgencyListReportTemplate.SamplingPointTypesEnum.WW).ToString());
            chkTreatQC.Checked = value.Split(',').Contains(((int)AgencyListReportTemplate.SamplingPointTypesEnum.QC).ToString());

            isSelectionSetByPage = true;
        }
    }

或

    /// <summary>
    /// Treatment Point Types
    /// </summary>
    public string DWTreatment
    {
        get
        {
            StringBuilder sbStatus = new StringBuilder();
            .........

        }

        set
        {
            var values = value.Split(',');
            chkTreatSR.Checked = values.Contains(((int)AgencyListReportTemplate.SamplingPointTypesEnum.SR).ToString());
            chkTreatIT.Checked = values.Contains(((int)AgencyListReportTemplate.SamplingPointTypesEnum.IT).ToString());
            chkTreatEP.Checked = values.Contains(((int)AgencyListReportTemplate.SamplingPointTypesEnum.EP).ToString());
            chkTreatWW.Checked = values.Contains(((int)AgencyListReportTemplate.SamplingPointTypesEnum.WW).ToString());
            chkTreatQC.Checked = values.Contains(((int)AgencyListReportTemplate.SamplingPointTypesEnum.QC).ToString());

            isSelectionSetByPage = true;
        }
    }

谢谢。

Answer 1

第二个示例将分配较少的内存，因为每次调用 string.Split(,) 都会分配一个新的字符串数组。

如果这是您代码中的 "hot-spot"，您可能会考虑根本不调用 string.Split，而是使用 Regex 来搜索您的枚举。