1 // Test64.cpp : This file contains the 'main' function. Program execution begins and ends there. 2 // 3 4 #include <iostream> 5 6 int main() 7 { 8 printf("char size = %d ", sizeof(char)); 9 printf("unsigned char size = %d ", sizeof(unsigned char)); 10 printf("short size = %d ", sizeof(short)); 11 printf("unsigned short size = %d ", sizeof(unsigned short)); 12 printf("int size = %d ", sizeof(int)); 13 printf("unsigned int size = %d ", sizeof(unsigned int)); 14 printf("long size = %d ", sizeof(long)); 15 printf("unsigned long size = %d ", sizeof(unsigned long)); 16 printf("long long size = %d ", sizeof(long long)); 17 printf("float size = %d ", sizeof(float)); 18 printf("long float size = %d ", sizeof(long float)); 19 printf("double size = %d ", sizeof(double)); 20 printf("long double size = %d ", sizeof(long double)); 21 22 23 printf("char* size = %d ", sizeof(char*)); 24 printf("short* size = %d ", sizeof(short*)); 25 printf("int* size = %d ", sizeof(int*)); 26 printf("long* size = %d ", sizeof(long*)); 27 printf("float* size = %d ", sizeof(float*)); 28 printf("double* size = %d ", sizeof(double*)); 29 30 } 31
32位下的：
64位下的：
