采样中的数据类型转换

main(){    long int a,c;    unsigned long int b;    double x;    char y;    unsigned int i,j;      i=4096;      j=4095;       printf("i===>%d \n",i);       printf("j===>%d \n",j);     b=(unsigned long int)i*j;     x=(double)(b);     x=x*32;     x=1.44*x;     x=x/2218475;     x=x/32;     x=(double)SqrLint(x*1000000);     x=x/1000;        printf("a===>%f \n",a);        printf("b===>%ld \n",b);        printf("x===>%f \n",x);    getch();}