计算并输出一个非零整数序列(序列非空)中偶数的平均值。所有输入数据用空格隔开，用0结束输入。输出数据保留2位小数。\n\n#include <stdio.h>\nint main()\n{\n int nu

m, count = ;
double sum = ., avg = .;
scanf("%d", &num);
while(num != )
{
if(num % 2 == )
{
sum += num;
count++;
}
scanf("%d", &num);
}
if(count != )
{
avg = sum / count;
printf("%.2lf", avg);
}
else
{
printf(".00");
}
return ;
}