输入字符串的格式不正确

Question

using System; using System.Collections.Generic; using System.Linq; using System.Text;namespace Week02_Console {     class Program     {         static void Main(string[] args)         {             Console.WriteLine("This's the first lab");            Console.WriteLine("What's your name?");             string name = Console.ReadLine();             Console.WriteLine("Merry X’mas! {0}!", name);             Console.Read();            Console.WriteLine("This's the second lab");            Console.WriteLine("Enter your age please :");             string strAge = Console.ReadLine();            int age = Convert.ToInt32(strAge);             Console.WriteLine("You'll be {0}next year!", age + 1);             Console.Read();         }     } }

Answer 1

问题出在

int age = Convert.ToInt32(strAge);

如果stringAge的值是空字符串就会出现这个错误。