using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
//convert类型转换

//1,字符串转换成整数
string s = "123";
int i = Convert.ToInt32(s);
Console.WriteLine(s);

Console.ReadKey();
}
}
}