无法从自定义对象转换为对象或动态对象

public class CustomObject
{
    public int Value { get; set; }
}

public class TargetObject
{
    public int Value { get; set; }
}

CustomObject customObj = new CustomObject { Value = 10 };
TargetObject targetObj = (TargetObject)customObj; // 抛出异常

public static explicit operator TargetObject(CustomObject customObj)
{
    return new TargetObject { Value = customObj.Value };
}

TargetObject targetObj = (TargetObject)customObj; // 正常转换

public static implicit operator TargetObject(CustomObject customObj)
{
    return null; // 错误的转换逻辑
}

TargetObject targetObj = customObj; // 目标对象为null

public static implicit operator TargetObject(CustomObject customObj)
{
    return new TargetObject { Value = customObj.Value }; // 正确的转换逻辑
}

TargetObject targetObj = customObj; // 正常转换