2x-1/2y=16y=32-4x当x=1时y=32-4=28当x=2时y=32-8=24当x=3时y=32-12=20当x=4时y=32-16=16当x=5时y=32-20=12当x=6时y=32-24=8当x=7时y=32-28=4当x=8时y=32-32=0当x和y 大于或等于0时有上边的整数解当x=9时y=32-36=-4....