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@@ -0,0 +1,181 @@
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+#include <stdio.h>
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+#include <stdlib.h>
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+#include "flash_light.h"
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+
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+typedef struct pkt_cell *pkt_cell_t; // 电池接口
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+struct pkt_cell
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+{
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+ void (*init)(void *t);
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+ void (*set_link_to_next)(void *t, pkt_cell_t cell);
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+ int (*get_power)(void *t);
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+};
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+
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+typedef struct pkt_light *pkt_light_t; // 手电筒接口
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+struct pkt_light
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+{
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+ void (*init)(void *t);
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+ void (*add_cell)(void *t, void *cell);
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+ int (*power)(void *t);
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+};
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+
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+typedef struct pkt_panasonic_cell *pkt_panasonic_cell_t; // 松下电池类
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+struct pkt_panasonic_cell
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+{
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+ struct pkt_cell cell;
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+ int pwr;
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+ const char *name;
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+ pkt_cell_t next;
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+};
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+
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+typedef struct pkt_cat_cell *pkt_cat_cell_t; // 黑猫电池类
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+struct pkt_cat_cell
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+{
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+ struct pkt_cell cell;
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+ int pwr;
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+ const char *name;
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+ pkt_cell_t next;
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+};
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+
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+typedef struct pkt_falsh_light *pkt_falsh_light_t; // 手电筒类
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+struct pkt_falsh_light
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+{
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+ struct pkt_light light;
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+ pkt_cell_t head;
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+ pkt_cell_t tail;
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+};
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+
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+// 松下电池接口实现
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+void pkt_panasonic_cell_init(void *t)
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+{
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+ pkt_panasonic_cell_t this = (pkt_panasonic_cell_t)t;
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+
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+ this->name = "panasonic";
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+ this->pwr = 20;
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+ this->next = NULL;
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+}
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+void pkt_panasonic_cell_set_link_to_next(void *t, pkt_cell_t cell)
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+{
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+ pkt_panasonic_cell_t this = (pkt_panasonic_cell_t)t;
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+ this->next = cell;
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+}
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+int pkt_panasonic_cell_get_power(void *t)
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+{
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+ pkt_panasonic_cell_t this = (pkt_panasonic_cell_t)t;
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+ pkt_cell_t pc = this->next;
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+ if (NULL == pc)
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+ {
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+ return this->pwr;
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+ }
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+ else
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+ {
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+ pc = this->next;
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+ return (this->pwr + pc->get_power(pc));
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+ }
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+}
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+pkt_panasonic_cell_t pkt_structure_panasonic_cell(void)
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+{
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+ pkt_panasonic_cell_t n = (pkt_panasonic_cell_t)malloc(sizeof(struct pkt_panasonic_cell));
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+ if (NULL == n) return NULL;
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+ n->cell.init = pkt_panasonic_cell_init;
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+ n->cell.set_link_to_next = pkt_panasonic_cell_set_link_to_next;
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+ n->cell.get_power = pkt_panasonic_cell_get_power;
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+ return n;
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+}
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+// 黑猫电池接口实现
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+void pkt_cat_cell_init(void *t)
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+{
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+ pkt_cat_cell_t this = (pkt_cat_cell_t)t;
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+
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+ this->name = "cat";
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+ this->pwr = 15;
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+ this->next = NULL;
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+}
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+void pkt_cat_cell_set_link_to_next(void *t, pkt_cell_t cell)
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+{
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+ pkt_cat_cell_t this = (pkt_cat_cell_t)t;
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+ this->next = cell;
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+}
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+int pkt_cat_cell_get_power(void *t)
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+{
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+ pkt_cat_cell_t this = (pkt_cat_cell_t)t;
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+ pkt_cell_t pc = this->next;
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+ if (NULL == pc)
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+ {
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+ return this->pwr;
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+ }
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+ else
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+ {
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+ pc = this->next;
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+ return (this->pwr + pc->get_power(pc)); // 递归
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+ }
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+}
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+pkt_cat_cell_t pkt_structure_cat_cell(void)
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+{
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+ pkt_cat_cell_t n = (pkt_cat_cell_t)malloc(sizeof(struct pkt_cat_cell));
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+ if (NULL == n) return NULL;
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+ n->cell.init = pkt_cat_cell_init;
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+ n->cell.set_link_to_next = pkt_cat_cell_set_link_to_next;
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+ n->cell.get_power = pkt_cat_cell_get_power;
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+ return n;
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+}
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+
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+// 手电筒接口实现
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+void pkt_light_init(void *t)
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+{
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+ pkt_falsh_light_t this = (pkt_falsh_light_t)t;
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+ this->head = this->tail = NULL;
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+}
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+void pkt_light_add_cell(void *t, void *cell)
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+{
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+ pkt_falsh_light_t this = (pkt_falsh_light_t)t;
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+ pkt_cell_t tcell = (pkt_cell_t)cell;
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+ pkt_cell_t pc;
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+
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+ if(this->head == NULL) // 第一个节点
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+ {
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+ this->head = tcell;
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+ this->tail = this->head;
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+ }
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+ else
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+ {
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+ pc = this->tail;
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+ pc->set_link_to_next(pc, tcell);
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+ this->tail = tcell;
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+ }
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+}
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+int pkt_light_power(void *t)
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+{
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+ pkt_falsh_light_t this = (pkt_falsh_light_t)t;
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+ pkt_cell_t pc = this->head;
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+ return pc->get_power(pc);
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+}
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+pkt_falsh_light_t pkt_structure_falsh_light_cell(void)
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+{
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+ pkt_falsh_light_t n = (pkt_falsh_light_t)malloc(sizeof(struct pkt_falsh_light));
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+ if (NULL == n) return NULL;
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+ n->light.init = pkt_light_init;
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+ n->light.add_cell = pkt_light_add_cell;
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+ n->light.power = pkt_light_power;
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+ return n;
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+}
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+
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+int main(void)
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+{
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+ pkt_falsh_light_t falsh_light = pkt_structure_falsh_light_cell();
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+ pkt_panasonic_cell_t panasonic_cell = pkt_structure_panasonic_cell();
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+ pkt_cat_cell_t cat_cell = pkt_structure_cat_cell();
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+ pkt_cat_cell_t cat_cell1 = pkt_structure_cat_cell();
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+
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+ falsh_light->light.init(falsh_light);
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+ panasonic_cell->cell.init(panasonic_cell);
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+ cat_cell->cell.init(cat_cell);
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+ cat_cell->cell.init(cat_cell1);
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+
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+ falsh_light->light.add_cell(falsh_light, panasonic_cell);
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+ falsh_light->light.add_cell(falsh_light, cat_cell);
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+ falsh_light->light.add_cell(falsh_light, cat_cell1);
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+
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+ printf("falsh light power = %d\n", falsh_light->light.power(falsh_light));
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+
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+ return 0;
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+}
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