public static void pgdoj(PersonList per) { var b = from a in per where !a.Name.Contains("欧阳") group a by a.Name.Substring(0, 1) into box select new { box.Key, sum = box.Count() }; foreach (var i in b) { Console.WriteLine("姓:{0},人数:{1}", i.Key, i.sum); } var name = from a in per where a.Name.Contains("欧阳") group a by a.Name.Substring(0, 2) into box select new { box.Key, sum = box.Count() }; foreach (var i in name) { Console.WriteLine("姓:{0},人数:{1}", i.Key, i.sum); } Console.Read(); }
public static List <string> GetFirstName(PersonList persons) { List <string> fn = new List <string>();//用来装检测出的复姓 List <string> a = new List <string>() { "欧阳", "太史", "端木", "上官", "司马", "东方", "独孤", "南宫", "万俟", "闻人", "夏侯", "诸葛", "尉迟", "公羊", "赫连", "澹台", "皇甫", "宗政", "濮阳", "公冶", "太叔", "申屠", "公孙", "慕容", "仲孙", "钟离", "长孙", "宇文", "司徒", "鲜于", "司空", "闾丘", "子车", "亓官", "司寇", "巫马", "公西", "颛孙", "壤驷", "公良", "漆雕", "乐正", "宰父", "谷梁", "拓跋", "夹谷", "轩辕", "令狐", "段干", "百里", "呼延", "东郭", "南门", "羊舌", "微生", "公户", "公玉", "公仪", "梁丘", "公仲", "公上", "公门", "公山", "公坚", "左丘", "公伯", "西门", "公祖", "第五", "公乘", "贯丘", "公皙", "南荣", "东里", "东宫", "仲长", "子书", "子桑", "即墨", "达奚", "褚师", "吴铭" }; //枚举所有复姓 foreach (var people in persons) //轮训所有人员姓名 { foreach (var item in a) //轮训所有人员姓名 { if (people.Name.Contains(item.ToString())) { fn.Add(item); continue; } else { continue; } } } // 复姓人数 fn.count(); 非复姓人数 persons.count()-fn.count(); return(fn); }
/// <summary> /// 使用 IList 的扩展方法 GroupBy 来获取来自哪些省份的数据 /// </summary> /// <param name="persons"></param> /// <returns></returns> public static List <string> GetProvincesGroupBy(PersonList persons) { var result = new List <string>(); foreach (var item in persons.GroupBy(x => x.Province)) { result.Add(item.Key); } return(result); }
/// <summary> /// 提取人员集合中,来自哪些省份的数据 /// </summary> /// <param name="persons"></param> /// <returns></returns> public static List <string> GetProvinces(PersonList persons) { var result = new List <string>(); foreach (var item in persons) { if (!result.Contains(item.Province)) { result.Add(item.Province); } } return(result); }
/// <summary> /// 使用 IList 的扩展方法 GroupBy 每个省份有多少人 /// </summary> /// <param name="persons"></param> /// <returns></returns> public static List <PersonsInProvince> GetProvincesPersons(PersonList persons) { var result = new List <PersonsInProvince>(); foreach (var item in persons.GroupBy(x => x.Province)) { var data = new PersonsInProvince { ProvinceName = item.Key, Amount = item.Count() }; result.Add(data); } return(result); }
/// <summary> /// 计算平均年龄 /// </summary> /// <param name="persons">人员的 List 集合</param> /// <returns></returns> public static string AverageAge(PersonList persons) { var result = ""; var totalDays = 0; // 所有人员的全部天数 var now = DateTime.Now; foreach (var item in persons) { totalDays = totalDays + Math.Abs(((TimeSpan)(now - item.Birthday)).Days); } var avgTotaldays = totalDays / persons.Count; var avgYears = avgTotaldays / 365; var avgDays = avgTotaldays - avgYears * 365; result = "平均年龄:" + avgYears + "周岁" + "-" + avgDays + "天"; return(result); }
public PersonEnumerator(PersonList collection) { _collection = collection; curIndex = -1; curPerson = default(Person); }
/// <summary> /// 初始化一组人员数据 /// </summary> /// <returns></returns> public static PersonList InitialPersonList() { var persons = new PersonList(); #region 初始化人员数据 persons.Add(new Person { Name = "张小祎", Province = "北京", City = "北京", Sex = true, Birthday = DateTime.Parse("1964-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "李珊柳", Province = "北京", City = "北京", Sex = false, Birthday = DateTime.Parse("1966-02-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "李华语", Province = "河北", City = "石家庄", Sex = true, Birthday = DateTime.Parse("1966-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "黄慧琳", Province = "河北", City = "廊坊", Sex = false, Birthday = DateTime.Parse("1966-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "潘加伟", Province = "河北", City = "唐山", Sex = true, Birthday = DateTime.Parse("1963-10-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "秦小梨", Province = "河北", City = "唐山", Sex = false, Birthday = DateTime.Parse("1966-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "覃晓琳", Province = "河北", City = "石家庄", Sex = true, Birthday = DateTime.Parse("1968-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "韦长英", Province = "广西", City = "柳州", Sex = true, Birthday = DateTime.Parse("1969-03-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "韦大东", Province = "广西", City = "南宁", Sex = true, Birthday = DateTime.Parse("1969-03-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "韦家文", Province = "广西", City = "柳州", Sex = true, Birthday = DateTime.Parse("1969-03-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "黎文新", Province = "广西", City = "柳州", Sex = true, Birthday = DateTime.Parse("1969-03-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "黎子流", Province = "广东", City = "广州", Sex = true, Birthday = DateTime.Parse("1969-03-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "余卫东", Province = "广东", City = "广州", Sex = true, Birthday = DateTime.Parse("1969-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "何家宝", Province = "广东", City = "广州", Sex = true, Birthday = DateTime.Parse("1970-08-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "何欣俊", Province = "广东", City = "广州", Sex = true, Birthday = DateTime.Parse("1970-08-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "余华亮", Province = "广东", City = "广州", Sex = true, Birthday = DateTime.Parse("1970-08-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "汤富贵", Province = "广东", City = "广州", Sex = true, Birthday = DateTime.Parse("1970-08-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "唐富贵", Province = "广东", City = "广州", Sex = true, Birthday = DateTime.Parse("1970-08-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "唐蔚佳", Province = "广东", City = "深圳", Sex = false, Birthday = DateTime.Parse("1964-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "谢显才", Province = "广东", City = "深圳", Sex = true, Birthday = DateTime.Parse("1972-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "解晓东", Province = "广东", City = "深圳", Sex = true, Birthday = DateTime.Parse("1972-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "谢家麟", Province = "广东", City = "深圳", Sex = true, Birthday = DateTime.Parse("1972-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "谢子怡", Province = "广东", City = "深圳", Sex = false, Birthday = DateTime.Parse("1973-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "张建光", Province = "广东", City = "深圳", Sex = true, Birthday = DateTime.Parse("1988-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "李振书", Province = "广东", City = "深圳", Sex = true, Birthday = DateTime.Parse("1988-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "陈丰州", Province = "广东", City = "深圳", Sex = true, Birthday = DateTime.Parse("1988-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "陈卫东", Province = "广东", City = "深圳", Sex = true, Birthday = DateTime.Parse("1988-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "陈峰受", Province = "广东", City = "深圳", Sex = true, Birthday = DateTime.Parse("1988-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "陈金健", Province = "广东", City = "深圳", Sex = true, Birthday = DateTime.Parse("1988-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "韦海波", Province = "广东", City = "深圳", Sex = true, Birthday = DateTime.Parse("1988-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "祁宣明", Province = "广东", City = "深圳", Sex = true, Birthday = DateTime.Parse("1988-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "戚计生", Province = "上海", City = "上海", Sex = true, Birthday = DateTime.Parse("1988-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "石智生", Province = "广西", City = "柳州", Sex = true, Birthday = DateTime.Parse("1988-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "苏晓琳", Province = "广西", City = "柳州", Sex = false, Birthday = DateTime.Parse("1989-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "苏振彪", Province = "广西", City = "柳州", Sex = true, Birthday = DateTime.Parse("1993-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "谭家伟", Province = "广西", City = "柳州", Sex = true, Birthday = DateTime.Parse("1993-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "谭俊杰", Province = "广西", City = "桂林", Sex = true, Birthday = DateTime.Parse("1993-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "王定祠", Province = "广西", City = "桂林", Sex = true, Birthday = DateTime.Parse("1993-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "王金生", Province = "广西", City = "北海", Sex = true, Birthday = DateTime.Parse("1993-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "王宝军", Province = "广西", City = "钦州", Sex = true, Birthday = DateTime.Parse("1993-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "吴克标", Province = "广西", City = "防城港", Sex = true, Birthday = DateTime.Parse("1993-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "吴斌", Province = "江西", City = "南昌", Sex = true, Birthday = DateTime.Parse("1993-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "游毅峰", Province = "湖南", City = "长沙", Sex = true, Birthday = DateTime.Parse("1993-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "柳君华", Province = "湖南", City = "长沙", Sex = true, Birthday = DateTime.Parse("1993-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "刘小薇", Province = "湖南", City = "郴州", Sex = false, Birthday = DateTime.Parse("1993-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "陈东风", Province = "湖南", City = "衡阳", Sex = true, Birthday = DateTime.Parse("1999-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "欧阳海", Province = "湖南", City = "长沙", Sex = true, Birthday = DateTime.Parse("1985-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "柳三变", Province = "湖南", City = "邵阳", Sex = true, Birthday = DateTime.Parse("1986-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "郭骁", Province = "北京", City = "北京", Sex = true, Birthday = DateTime.Parse("1996-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "郭家铭", Province = "香港", City = "香港", Sex = true, Birthday = DateTime.Parse("1996-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "陈兆年", Province = "四川", City = "成都", Sex = true, Birthday = DateTime.Parse("1996-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "农卫红", Province = "四川", City = "成都", Sex = false, Birthday = DateTime.Parse("2000-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "农志升", Province = "四川", City = "成都", Sex = true, Birthday = DateTime.Parse("1989-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "农小琳", Province = "四川", City = "攀枝花", Sex = true, Birthday = DateTime.Parse("1988-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "徐荣国", Province = "四川", City = "泸州", Sex = true, Birthday = DateTime.Parse("1996-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "聂小威", Province = "四川", City = "泸州", Sex = true, Birthday = DateTime.Parse("1996-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "邱福林", Province = "四川", City = "泸州", Sex = true, Birthday = DateTime.Parse("1996-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "范思坦", Province = "四川", City = "泸州", Sex = true, Birthday = DateTime.Parse("1996-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "邓唯佳", Province = "四川", City = "泸州", Sex = false, Birthday = DateTime.Parse("1998-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "马晓东", Province = "云南", City = "昆明", Sex = true, Birthday = DateTime.Parse("1999-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "魏明翠", Province = "云南", City = "昆明", Sex = false, Birthday = DateTime.Parse("2000-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "尹相杰", Province = "贵州", City = "贵阳", Sex = true, Birthday = DateTime.Parse("1993-09-08"), Email = "*****@*****.**" }); persons.Add(new Person { Name = "张小祎", Province = "贵州", City = "凯里", Sex = false, Birthday = DateTime.Parse("1993-09-08"), Email = "*****@*****.**" }); #endregion return(persons); }