C语言的普通数据类型所占字节（sizeof）

#include<stdio.h>
int main(){
    char* pp;
    char* p[5];
    int* i;
    char numchar;
    double numdouble;
    float numfloat;

    printf("char* pp:  %d\nchar* p[5]:  %d\nint*:  %d\nchar:  %d\ndouble:  %d\nfloat:  %d\n",sizeof(pp),sizeof(p),sizeof(i),sizeof(numchar),sizeof(numdouble),sizeof(numfloat));

    return 0;
}