程序运行时，单击“最大公约数”命令按钮，求得所输入的两个数的最大公约数；单击“最小公倍数”命令按钮，求得所输入的两个数的最小公倍数；结果在标签中显示。 -When the program is running, click the "greatest common divisor" command button, and seek the greatest common divisor of two numbers entered　click the "lowest common denominator" command button, and seek the least common multiple of two numbers entered　Resultslabel in the display.