下面程序的运行结果是_____.
#include<stdio.h>
void main( )
{ int a,b;
a=-1;
b=0;
do {undefined
++a;
b+=a;
} while(a<9);
printf("%d\n",b);
}
A) 34 B) 24 C) 26 D) 25
1+3+5+7+9
D
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