错误信息这样，能够比较出数组a大于和等于数组b的次数，但是比较不出小于b的次数，直接头大啊，给你们看看源代码：

//数组元素作为函数实参 flag 定义一个开关
#include<stdio.h>

void main()
{
int large(int x,int y);

int a[10],b[10],i,n=0,m=0,k=0;

printf("请输入数组a的值；\n");
for(i=0;i<10;i++)
scanf("%d",&a[i]);
printf("\n");

printf("请输入数组b的值；\n");
for(i=0;i<10;i++)
scanf("%d",&b[i]);
printf("\n");

for(i=0;i<10;i++)
{
if(large(a[i],b[i])==1)
n++;
if(large(a[i],b[i])==0)
m++;
else
k++;
}
printf("a[i]>b[i] %d times\na[i]=b[i] %d times\na[i]<b[i] %d times\n",n,m,k);

if(n>k)
printf("array a is larger than array b\n");
if(n<k)
printf("array a is smaller than array b\n");
else
printf("array a is equal to array b\n");

}

large(int x,int y){
int flag;


if(x>y)
flag=1;
else if(x<y)
flag=-1;
else
flag=0;

return (flag);
}