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C# Post方法封装

    public static async Task MyPost<T>(T t,string url)    {       HttpClient client = new HttpClient();       client.BaseAddress = new Uri("http://test.com");       Dictionary<string, string> dic = new Dictionary<string, string>();       getProperties(t, dic);       HttpContent content = new FormUrlEncodedContent(dic);       HttpResponseMessage response = await client.PostAsync(url, content);       string message = await response.Content.ReadAsStringAsync();    }    public static string getProperties<T>(T t,Dictionary<string,string> myDic)    {        string tStr = string.Empty;        if (t == null)//判空        {            return tStr;        }        PropertyInfo[] properties = t.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public);        if (properties.Length <= 0)//属性个数是否为0        {            return tStr;        }        foreach (PropertyInfo item in properties)        {            string name = item.Name;            object value = item.GetValue(t, null);            if (item.PropertyType.IsValueType || item.PropertyType.Name.StartsWith("String"))            {                myDic.Add(name, value.ToString());            }        }        return tStr;    } class Test1    {        public string s1 { get; set; }        public string s2 { get; set; }        public float f1 { get; set; }        public int i1 { get; set; }        public Test1(string s1, string s2, float f1, int i1)        {            this.s1 = s1;            this.s2 = s2;            this.f1 = f1;            this.i1 = i1;        }    }