C# 输出 九九乘法口诀

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

namespace Consolezeng
{
class Program
{
/*************输出九九乘法口诀***************/
static void Main(string[] args)
{
string str = " ";
int i;
int j;
int sum;
for (i = 1; i < 10; i++)
{
for (j = 1; j <=i; j++)
{
sum = i * j;
Console.Write(j);
Console.Write("*");
Console.Write(i);
Console.Write("=");
Console.Write(sum);
Console.Write(str);
}
Console.WriteLine();
}
Console.Read();
}
}
}