为了将多个源数组进行自定义映射到单个目标数组，需要使用Automapper库。下面是一个示例代码：

// 定义源类
public class Source1
{
    public int Id { get; set; }
    public string Name { get; set; }
}

public class Source2
{
    public decimal Amount { get; set; }
}

// 定义目标类
public class Destination
{
    public int Id { get; set; }
    public string Name { get; set; }
    public decimal Amount { get; set; }
}

// 添加映射配置
var config = new MapperConfiguration(cfg =>
{
    cfg.CreateMap();
    cfg.CreateMap();
    cfg.CreateMap(typeof(Source1[]), typeof(Destination[]))
        .ConvertUsing(typeof(Source1ToDestinationConverter));
    cfg.CreateMap(typeof(Source2[]), typeof(Destination[]))
        .ConvertUsing(typeof(Source2ToDestinationConverter));
});

// 自定义转换器
public class Source1ToDestinationConverter : ITypeConverter
{
    public Destination[] Convert(Source1[] source, Destination[] destination, ResolutionContext context)
    {
        if (source == null)
            return null;

        var result = new List();
        foreach (var item in source)
            result.Add(context.Mapper.Map(item));

        return result.ToArray();
    }
}

public class Source2ToDestinationConverter : ITypeConverter
{
    public Destination[] Convert(Source2[] source, Destination[] destination, ResolutionContext context)
    {
        if (source == null)
            return null;

        var result = new List();
        foreach (var item in source)
            result.Add(context.Mapper.Map(item));

        return result.ToArray();
    }
}

// 使用映射器
var mapper = config.CreateMapper();

var source1 = new[] { new Source1 { Id = 1, Name = "John" }, new Source1 { Id = 2, Name = "Jane" } };
var source2 = new[] { new Source2 { Amount = 100.