dime a(3,4)
for i=1 to 3
for j=1 to 4
input "請輸入壹個值:" to a(i,j)
endfor
k=a(1,1)
for m=1 to 3
for n=1 to 4
r=a(m,n)
if r>k
k=r
x1=m
x2=n
endif