A.快速排序B.直接選擇排序C.冒泡排序D.折半插入排序
A.0B.1C.trueD.flase
A.t=a;a=b;b=t;B.a =a +b;b =a -b;a =a -b;C.b=t;a=b;a=t;D.t=b;b=a;a=t;