for i=1 to 4 x=4 for j=1 to 3 x=3 fork=1 to 2 x=x+6 next k next j next i msgbox x 为什么结果是15

for i=1 to 4 x=4 for j=1 to 3 x=3 fork=1 to 2 x=x+6 next k next j next i msgbox x 为什么结果是15
for i=1 to 4 x=4 for j=1 to 3 x=3 fork=1 to 2 x=x+6 next k next j next i msgbox x 为什么结果是15

for i=1 to 4 x=4 for j=1 to 3 x=3 fork=1 to 2 x=x+6 next k next j next i msgbox x 为什么结果是15
i=1; j=1; k=1; x=9
i=1; j=1; k=2; x=15
i=1; j=2; k=1; x=9
i=1; j=2; k=2; x=15
i=1; j=3; k=1; x=9
i=1; j=3; k=2; x=15
i=2; j=1; k=1; x=9
i=2; j=1; k=2; x=15
i=2; j=2; k=1; x=9
i=2; j=2; k=2; x=15
i=2; j=3; k=1; x=9
i=2; j=3; k=2; x=15
i=3; j=1; k=1; x=9
i=3; j=1; k=2; x=15
i=3; j=2; k=1; x=9
i=3; j=2; k=2; x=15
i=3; j=3; k=1; x=9
i=3; j=3; k=2; x=15
i=4; j=1; k=1; x=9
i=4; j=1; k=2; x=15
i=4; j=2; k=1; x=9
i=4; j=2; k=2; x=15
i=4; j=3; k=1; x=9
i=4; j=3; k=2; x=15