A.if(x > 0) y = 1; else if(x == 0) y = 0; else y = -1;
B.y = 0; if(x > 0) y = 1; else if(x < 0) y = -1;
C.y = 0; if(x >= 0); if(x > 0) y = 1; else y = -1;
D.if(x >= 0) if(x > 0) y = 1; else y = 0; else y = -1;
A.if(x > 0) y = 1; else if(x == 0) y = 0; else y = -1;
B.y = 0; if(x > 0) y = 1; else if(x < 0) y = -1;
C.y = 0; if(x >= 0); if(x > 0) y = 1; else y = -1;
D.if(x >= 0) if(x > 0) y = 1; else y = 0; else y = -1;
第1题
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:
第2题
A.if(x>0)y=1; else if(x<0)y=1; else y=0;
B.if(x) if(x>0)y=1; else if(x<0)y=-l; else y=0;
C.y=-l if(x) if(x>O)y=1; else if(x=-0)y=0; else y=-l;
D.y=0; if(x>=0) if(x>=0)y=1; else y=-l;
第3题
A.if(x>0)y=1; else if(x= =0)y=0; else y=-1;
B.y=0; if(x>0)y=1; else if(x<0)y=-1;
C.y = 0; if (x> = 0) if (x>0) y = 1; else y = -1;
D.if ( x > = 0) if ( x>0)y = 1; else y = 0; else y = -1;
第4题
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;
第5题
#include <stdio.h>
main()
{ int x=1,y=0;
if(!x) y++;
else if(x==0)
if (x) y+=2;
else y+=3;
printf("%d\n",y);
}
程序运行后的输出结果是
A)3
B)2
C)1
D)0
第6题
#inclUde<stdio.h>
main()
{int x=1。y=0;
if(!x)y++;
else if(x==0)
if(x)y+=2;
else y+=3; .
printf(“%d\n”,y);
}
程序运行后的输出结果是
A.3
B.2
C.1
D.0
第7题
#inclUde<stdio.h>
main()
{int x=1。y=0;
if(!x)y++;
else if(x==0)
if(x)y+=2;
else y+=3; .
printf(“%d\n”,y);
}
程序运行后的输出结果是
A.3
B.2
C.1
D.0
第8题
#include
main()
{ int x=1,y=0;
if(!x) y++;
else if(x==0)
if (x) y+=2;
else y+=3;
printf("%d\n",y);
}
程序运行后的输出结果是
A.3
B.2
C.1
D.0
第9题
B、if(x>0)y=1; else if(x==0)y=0; else y=-1;
C、y=0; if(x>=0) if(x>0) y=1; else y=-1;
D、y=0; if(x>0) y=1; else if(x<0) y="-1">
第10题
A. 1
B. 0
C. -1
D. 不确定
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