c# character length query code

using System;
using ;
namespace StringLengthTest
{
class Program
{
static void Main(string[] args)
{
string strTmp = "abcd1234 package";
int i = ("GB2312").GetBytes(strTmp).Length;
int j = (strTmp).Length;
int m = (strTmp).Length;
int n = (strTmp).Length;
int k = Encoding.(strTmp).Length;
(strTmp);
("GB2312： " + i);
("Unicode：" + j);
("ASCII： " + m);
("Default：" + n);
("UTF8： " + k);
();
}
}
}