vb用辗转相除法求两个自然数m,n的最大公约数和最小公倍数的程序代码如下,请完善之

vb用辗转相除法求两个自然数m,n的最大公约数和最小公倍数的程序代码如下,请完善之
用辗转相除法求两个自然数m,n的最大公约数和最小公倍数的程序代码如下,请完善之：
private sub command1_click()
dim m as integer,n as integer
dim a as integer,b as integer
dim r as integer
m = inputbox(输入m)
m = inputbox(输入n)
a=m
b=n
do
r=____
m=n
n=r
loop____
print a;和b;最大公约数是;______
print a;和b;最小公倍数是;______
end sub

Private Sub command1_click()
Dim m As Integer,n As Integer
Dim a As Integer,b As Integer
Dim r As Integer
m = InputBox(输入m)
n = InputBox(输入n)
a = m
b = n
Do
r = Abs(m - n)
m = n
n = r
Loop While m n
Print a; 和; b; 最大公约数是; r
Print a; 和; b; 最小公倍数是; a * b / r
End Su