函数Y的表达式如下,输入一个X的值,求Y的值 x x

class Program { static void Main(string[] args) { string str = Console。ReadLine(); int x; try { x = Convert。ToInt32(str); } catch (FormatException e) { return; } float y = Method(x); Console。WriteLine("y = " + y。ToString()); Console。ReadLine(); } static float Method(int x) { float y = 0; if (x < 0) { y = x; } else if (0 < x && x