单项选择题

与y=(x＞01: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=0;
else y=0;
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;

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单项选择题

单项选择题

与y=(x＞01: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=0; else y=0;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;