要给出通过的方法，用于Object对象转换成Dictionary<string,object>字典对象，key为字段名称，value为字段的值，给出c#代码

可以使用反射来实现Object对象转换成Dictionary<string, object>字典对象，具体代码如下：

using System;
using System.Collections.Generic;
using System.Reflection;

public static class ObjectExtensions
{
    public static Dictionary<string, object> ToDictionary(this object obj)
    {
        var dict = new Dictionary<string, object>();
        if (obj == null) return dict;
        var type = obj.GetType();
        var properties = type.GetProperties(BindingFlags.Public | BindingFlags.Instance);
        foreach (var property in properties)
        {
            var propertyName = property.Name;
            var propertyValue = property.GetValue(obj, null);
            dict[propertyName] = propertyValue;
        }
        return dict;
    }
}

使用示例：

var person = new { Name = "Tom", Age = 18 };
var dict = person.ToDictionary();
foreach (var item in dict)
{
    Console.WriteLine($"{item.Key}: {item.Value}");
}

输出结果：

Name: Tom
Age: 18