编写程序,利用运算符sizeof测试?答:int main(){ printf("%d %d\n",sizeof(char),8*sizeof(char));printf("%d %d\n",sizeof(int),8*sizeof(int));printf("%d %d\n",sizeof(long),8*sizeof(long));printf("%d %d\n",sizeof(float),8*sizeof(float));printf("%d %d\n",sizeof(double),8*sizeof(double));re...