import java.io.IOException;
import java.util.Scanner;
public class divisor
{
public static void main(String args[]) throws IOException
{
Scanner scanner = new Scanner(System.in);
System.out.println("请输入第一个数:");
double a = scanner.nextDouble();
System.out.println("请输入第二个数:");
double b = scanner.nextDouble();
System.out.println("两个数的最大公约数是:" + gcd(a, b));
}
public static double gcd(double a, double b)
{
if (0 == a)
{
return b;
}
if (0 == b)
{
return a;
}
if (a < b)
{
swap(a, b);
}
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