1.7.txt

《Microsoft Visual C# .NET 2003开发技巧大全》源代码

Listing 1.7 Using a for Statement to Loop and Calculate the Factorial of a Number
static void ComputeFactorial()
{
ulong loopCount = 0;
ulong factorial = 1;
Console.Write( “Enter an integer between 1 and 50: “ );
loopCount = UInt64.Parse( Console.ReadLine() );
for( ulong i = loopCount; i > 0; i-- )
{
factorial *= i;
}
Console.WriteLine( “{0}! = {1}”, loopCount, factorial );
}