#include <stdio.h> int main() { int s = sizeof(short); int i = sizeof(int); int l = sizeof(long); int ll = sizeof(long long); printf("The size of short is %d bytes.\n", s); printf("The size of int is %d bytes.\n", i); printf("The size of long is %d bytes.\n", l); printf("The size of long long is %d bytes.\n", ll); return 0; } //注意%d,想打印在哪里,就放在哪里eg://printf("The size of int is %d bytes.\n", i); //打印在is后面 //printf(" %d The size of int is bytes.\n", i); //i打印在最前面