A.1B.8C.不確定D.0
A.前面B.后面C.中間D.任意位置
A.當(dāng)S< 0時(shí),進(jìn)程繼續(xù)執(zhí)行B.當(dāng)S>0時(shí),進(jìn)程繼續(xù)執(zhí)行C.當(dāng)S ≥0時(shí),進(jìn)程繼續(xù)執(zhí)行D.當(dāng)S ≤0時(shí),進(jìn)程繼續(xù)執(zhí)行