Mavzu: C# tilining asosiy operatorlari. Satr va fayl ustida amallar

While takrorlanish operatori

• While takrorlanish operatorining umumiy ko’rinishi:
• While (shart) {
• amal1;
• amal2;
• }
• Misol:{
• int a,b,s=0;
• Console.Write("a son kiriting=");
• a =int.Parse(Console.ReadLine());
• while (a > 0) {
• b = a % 10; a /= 10; s += b;
• }
• Console.WriteLine("Raqamlar yig'indisi=" + s);
• Console.ReadKey(); }

While takrorlanish operatori

• string kalit = string.Empty;
• while (kalit != "Parol")
• {
• Console.WriteLine("Tizimga parolni kiriting");
• kalit = Console.ReadLine();
• if (kalit != "Parol")
• Console.WriteLine("Xato parol kiritdingiz");
• else
• Console.WriteLine("Tizimga xush kelibsiz");
• }
• Console.ReadKey();

While takrorlanish operatori

• Berilgan son nechta nol bilan tugallanishini aniqlovchi dastur.
• { int a,b,s=0;
• Console.Write("a sonni kiriting=");
• a =int.Parse(Console.ReadLine());
• while (a>0)
• {
• b=a%10; a/=10;
• if (b == 0) s++;
• else goto f;
• }
• f:Console.WriteLine("a son " + s + " ta nol bilan tugaydi");
• Console.ReadKey();
• }

Do … While

• Do … While operatori “amal bajar, agar shart bajarilsa, yana bir bor bajar” qoidasi bo’yicha ishlaydi. Bu operator kamida bir marta bajariladi.
• Misol: Berilgan sonda nechta nol qatnashganligini aniqlovchi dastur.
• {
• int a,b,s=0;
• Console.Write("a sonni kiriting=");
• a = int.Parse(Console.ReadLine());
• do
• {
• b = a % 10; a /= 10;
• if (b == 0) s++;
• }
• while (a>0);
• Console.WriteLine("Sonda " + s + " ta nol qatnashgan");
• Console.ReadLine();
• }

Do … While

• Misol: Berilgan sonda nechta xonali ekanligini aniqlovchi dastur.
• {
• int a,s=0;
• Console.Write("a sonni kiriting=");
• a = int.Parse(Console.ReadLine());
• do
• {
• a /= 10; s++;
• }
• while (a > 0);
• Console.WriteLine("berilgan son " + s + " xonali");
• Console.ReadKey();
• }