定义多值处理方法。 using System; using System.Globalization; using System.Windows.Data; namespace demo_business.Converters { public class NumIntervalConverter : IMultiValueConverter { public object Convert
效果图：App.xaml 资源文件引用 <Application x:Class="cddiot_business.App" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/win
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