C语言链表结构体（学习笔记）

#include <stdio.h>


#define LENTEST 100
	// 采取逐步删除的方法求的素数
	//先假设1-100都是素数，然后剔除2的倍数，
	//3的倍数，直到剔除所有的倍数关系 
int main()
{
	int i = 0, j = 0;
	int bop[LENTEST] = {0};

	for(i = 0; i < LENTEST; i++)
	{
		bop[i] = 1;
	}
	
	for(i = 2; i < LENTEST; i++)
	{
		if(bop[i])
		{
			for(j = 2; j*i < LENTEST; j++)
			{
				bop[j*i] = 0;
			}
		}
	}
	
	for(i = 2; i < LENTEST; i++)
	{
		if(bop[i])
		{
			printf("%d ", i);	
		}
	} 
	printf("
");
	
	return 0;	
} 

　　C语言关于结构体封装的测试（http://www.cnblogs.com/hdu-2010/p/3653470.html）

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

struct bitTest{

    char *p; //4
    char T1[4]; //4
    double x;//8
    char T2[4]; //4
    int y;//4
};

int main()
{  
    struct bitTest test;
    memset(&test, 0x0, sizeof(test));

    printf("%p
%p
%p
%p
%p
", &test.p, test.T1, &test.x, test.T2, &test.y);
    printf("%d
%d
", (&test.x - &test.p), (&test.y - &test.x));
    //printf("%p
%p
", test.T1, &test.T1);

    //printf("%c %d, {%d, %d}
", test.p, test.tergen, test.array[0], test.array[1]);
    printf("%d
", sizeof(struct bitTest));
    printf("%d
", sizeof(long double));
    
    system("pause");
    return 0;
}

 C语言链表翻转

typedef struct flim{
    char title[TSIZE];
    int rating;
    struct film *next;
}Flim;

void reverse2(Flim **head);

void reverse2(Flim **head)
{
    if(*head != NULL && (*head)->next != NULL)
    {
        Flim *tmp1 = (*head);
        Flim *tmp2 = (*head);
        Flim *tmp3 = (*head)->next;

        tmp1->next = NULL;
        while(tmp3->next != NULL)
        {
            tmp2 = tmp3;
            tmp3 = tmp3->next;
            tmp2->next = tmp1;
            tmp1 = tmp2;
        }
        tmp3->next = tmp2;
        (*head) = tmp3;
    }
}