与y=(x>0 1:x<0 -1:0);的功能相同的if语句是A.if(x>0)y=
问题:
与y=(x>0 1:x<0 -1:0);的功能相同的if语句是
A.if(x>0)y=1
else if(x<0)y=-1;
else y=O;
B.if(x)
if(x>0)y=1;
else if(x<0)y=-1;
C.y=-1;
if(x)
if(x>0)y=1;
else if(x==0)y=0;
else y=-1;
D.y=0;
if(x>=0)
if(x>0)y=1;
else y=-1;