static void Main(string[] args)
{
Animal a = new Cat();
Console.WriteLine(a.ToString());
a.gaugau();
a.sound();
a.Eat();
Cat b = new Cat();
Console.WriteLine(b.ToString());
b.sound();
b.Eat();
}
private static async Task Main(string[] args)
{
Func <int, int, bool> fa = Compare.Invoke;
myTimer t = new myTimer();
await Scrape.Download();
WriteLine(1__2333_4_5);
WriteLine(6.023E23F);
WriteLine(float.MaxValue);
WriteLine(double.MaxValue);
WriteLine(decimal.MaxValue);
WriteLine(0x_2002a);
WriteLine(0b_00101010101);
WriteLine($"0x{42:x8}");
WriteLine(Convert.ToString(42, 2));
WriteLine();
const double num = 1.618033988749895;
double res;
string text;
text = $"{num}";
res = double.Parse(text);
WriteLine($"{res == num}");
text = $"{num:R}";
res = double.Parse(text);
WriteLine($"{res == num}");
WriteLine($"{num:R}\t{res}");
WriteLine(string.Compare("SBAA", "sbab", StringComparison.OrdinalIgnoreCase));
Write('\u003a');
WriteLine('\u0029');
WriteLine($@"begin
/\
/ \{text}
/ \
/______\
end
");
var price = 9899.66;
WriteLine($"{{{price,20:C2} }}");
unchecked
{
var maxInt = int.MaxValue;
WriteLine(++maxInt);
}
var(country, capital, gdp) = ("Malawi", "Lilongwe", 226.50);
var countryInfo = (country, capital, gdp);
var cInfo = ("Malawi", Capital : "Lilongwe", 226.50);
WriteLine($"{countryInfo.country} {cInfo.Item2} {gdp}");
var c = new[] { new[] { 1, 2, 3 }, new[] { 1, 4, 5, 9 } };
var cells = new[, ] {
{ 1, 2, 3 }, { 1, 4, 9 }
};
c[1][0] = 2;
var d = c.Clone();
//Array.Resize(ref cells, 9);
WriteLine(cells.GetLength(0));
WriteLine(cells.Rank);
WriteLine(new string(text.Reverse().ToArray()));
char[] charArray = text.ToCharArray();
Array.Reverse(charArray);
string news = new string(charArray);
var n = '3' + '5';
WriteLine((char)n);
float f = -6f;
WriteLine(f / 0);
WriteLine(3.4e38f * 2f);
if (n > 1 || n < 5)
{
WriteLine("ok");
}
var x1 = -7;
x1 >>= 2;
WriteLine(x1);
byte and = 12, or = 12, xor = 12;
and &= 7;
or |= 7;
xor ^= 7;
WriteLine($"{and}\t{or}\t{xor}");
WriteLine(Convert.ToString(9989, 2));
int a = ~-1;
goto myLabel;
a++;
myLabel : WriteLine(Convert.ToString(a, 2));
var am = new Cat(20)
{
StarPoint = 100
};
TestReference(am);
WriteLine($"SP after test: {am.StarPoint}");
var am2 = new Cat(150, 99)
{
StarPoint = 100
};
var(age, _, starPoint, _) = am2;
var(j, k, l) = (3, "", '2');
am2.Deconstruct(out var age2, out _, out var sp, out _);
WriteLine($"am2 SP={am2.StarPoint} age={Cat.Age}");
WriteLine($"am2 SP={starPoint} age={age}");
am.Eat();
Animal.Sleep();
am.Run();
WriteLine($"Sp={am.StarPoint}");
WriteLine(am.Num);
WriteLine(Animal.Age);
WriteLine("---------------------------------");
Cat ct = (Cat)am;
WriteLine(ct.Num);
WriteLine(Cat.Age);
WriteLine(ct.Name);
ct.Eat();
Cat.Sleep();
ct.Run();
ct.CatchMouse();
var an = new Animal();
WriteLine(an.Num);
var sortArr = new[] { 1, 8, 2, 0, -3, 12, 6 };
Array.Sort(sortArr);
Array.Resize(ref sortArr, 10);
WriteLine(sortArr.Length);
int?a1 = sortArr?[1];
foreach (var i in sortArr)
{
Write(i + " ");
}
WriteLine();
var o = new object();
if (o is string str && str.Length > 2)
{
int.TryParse(str, out _);
}