软件测试 homework2 program1: fault:i>0 ,应改为i>=0. test1:x=[0,1,2];y=2 test2:x=[3];y=2 test3:x=[0,1,3];y=2 program2: fault:for(int i=x.length-1;i>=0;i--) test1:x=[] test2:x=[1,2,3] test3:x=[1,0,2]