^ 연산자 - 끝부터 인덱싱 연산자로 알려져 있습니다.
시퀀스 또는 세트의 끝을 기준으로 인덱스를 반환합니다.
이전 방법에 비해 마지막 요소를 찾는 가장 간결하고 간단한 방법입니다.
method.company.listEmployees[^2].Name = "새 구문을 사용하여 직원 2 이름이 변경되었습니다.";
company.listEmployees[^5].Name = "새 구문을 사용하여 직원 5 이름이 변경되었습니다.";
회사. listEmployees[^8].Name = "새 구문을 사용하여 직원 8 이름이 변경되었습니다.";
public class Employee{ public int EmployeeId { get; set; } public string Name { get; set; } public string Gender { get; set; } } public class Company{ public List<Employee> listEmployees; public Company(){ listEmployees = new List<Employee>(); listEmployees.Add(new Employee { EmployeeId = 1, Name = "SS", Gender = "Male" }); listEmployees.Add(new Employee { EmployeeId = 2, Name = "SSS", Gender = "Female" }); listEmployees.Add(new Employee { EmployeeId = 3, Name = "SSSS", Gender = "Male" }); listEmployees.Add(new Employee { EmployeeId = 4, Name = "EE", Gender = "Female" }); listEmployees.Add(new Employee { EmployeeId = 5, Name = "EEEE", Gender = "Female" }); listEmployees.Add(new Employee { EmployeeId = 6, Name = "TTT", Gender = "Male" }); listEmployees.Add(new Employee { EmployeeId = 7, Name = "FFF", Gender = "Male" }); listEmployees.Add(new Employee { EmployeeId = 8, Name = "GGG", Gender = "Male" }); } public string this[int employeeId]{ get{ return listEmployees. FirstOrDefault(x => x.EmployeeId == employeeId).Name; } set{ listEmployees. FirstOrDefault(x => x.EmployeeId == employeeId).Name = value; } } } class Program{ public static void Main(){ Company company = new Company(); Console.WriteLine("Name of Employee with Id = 2: " + company[2]); Console.WriteLine("Name of Employee with Id = 5: " + company[5]); Console.WriteLine("Name of Employee with Id = 8: " + company[8]); System.Console.WriteLine(); Console.WriteLine("Changing names of employees with Id = 2,5,8"); company[2] = "Employee 2 Name Changed"; company[5] = "Employee 5 Name Changed"; company[8] = "Employee 8 Name Changed"; System.Console.WriteLine(); Console.WriteLine("Name of Employee with Id = 2: " + company[2]); Console.WriteLine("Name of Employee with Id = 5: " + company[5]); Console.WriteLine("Name of Employee with Id = 8: " + company[8]); company.listEmployees[^2].Name = "Employee 2 Name Changed using new Syntax"; company.listEmployees[^5].Name = "Employee 5 Name Changed using new Syntax"; company.listEmployees[^8].Name = "Employee 8 Name Changed using new Syntax"; System.Console.WriteLine(); Console.WriteLine("Name of Employee with Id = 2: " + company.listEmployees[^2].Name); Console.WriteLine("Name of Employee with Id = 5: " + company.listEmployees[^5].Name); Console.WriteLine("Name of Employee with Id = 8: " + company.listEmployees[^8].Name); Console.ReadLine(); } }
Name of Employee with Id = 2: SSS Name of Employee with Id = 5: EEEE Name of Employee with Id = 8: GGG Changing names of employees with Id = 2,5,8 Name of Employee with Id = 2: Employee 2 Name Changed Name of Employee with Id = 5: Employee 5 Name Changed Name of Employee with Id = 8: Employee 8 Name Changed Name of Employee with Id = 2: Employee 2 Name Changed using new Syntax Name of Employee with Id = 5: Employee 5 Name Changed using new Syntax Name of Employee with Id = 8: Employee 8 Name Changed using new Syntax
위 내용은 C# 8.0에서 인덱서를 어떻게 사용하나요?의 상세 내용입니다. 자세한 내용은 PHP 중국어 웹사이트의 기타 관련 기사를 참조하세요!