| C语言 | 32位机 | 64位机 |
|---|---|---|
| char | 1字节 | 1字节 |
| short int | 2字节 | 2字节 |
| int | 4字节 | 4字节 |
| long int | 4字节 | 4字节 |
| long long int | 8字节 | 8字节 |
| float | 4字节 | 4字节 |
| double | 8字节 | 8字节 |
| 指针（ * ） | 4字节 | 8字节 |
（以上基于dev32位以及64位测试）
32位测试代码：
#include<stdio.h>
int main(){
printf("32位:\n");
printf("char :%d\n",sizeof(char));
printf("char* :%d\n",sizeof(char *));
printf("short :%d\n",sizeof(short));
printf("short *:%d\n",sizeof(short *));
printf("int :%d\n",sizeof(int));
printf("int * :%d\n",sizeof(int *));
printf("long int :%d\n",sizeof(long int));
printf("long int * :%d\n",sizeof(long int *));
printf("long long int :%d\n",sizeof(long long int));
printf("long long int * :%d\n",sizeof(long long int *));
printf("float :%d\n",sizeof(float));
printf("float * :%d\n",sizeof(float *));
printf("double :%d\n",sizeof(double));
printf("double * :%d\n",sizeof(double *));
} 运行结果：
64位测试代码：
#include<stdio.h>
int main(){
printf("64位:\n");
printf("char :%d\n",sizeof(char));
printf("char* :%d\n",sizeof(char *));
printf("short :%d\n",sizeof(short));
printf("short *:%d\n",sizeof(short *));
printf("int :%d\n",sizeof(int));
printf("int * :%d\n",sizeof(int *));
printf("long int :%d\n",sizeof(long int));
printf("long int * :%d\n",sizeof(long int *));
printf("long long int :%d\n",sizeof(long long int));
printf("long long int * :%d\n",sizeof(long long int *));
printf("float :%d\n",sizeof(float));
printf("float * :%d\n",sizeof(float *));
printf("double :%d\n",sizeof(double));
printf("double * :%d\n",sizeof(double *));
} 运行结果：
