using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ConsoleApp1 { class Program { static void Main(string[] args) { int number = 0; bool b = int.TryParse("123", out number); bool c = int.TryParse("123abc", out number); Console.WriteLine(b);//可以转换,结果为true Console.WriteLine(c);//不能转换为int,因为包含字符串,结果为false Console.WriteLine(number); Console.ReadKey(); } } }