C 语言 销售监控程序

volcanol

1. #include <stdio.h>
   
2. #include <stdlib.h>
   
3. #include <string.h>
   
4. 
   
5. #define NAMELENGTH 21 //??×?3¤?è
   
6. #define ERRFLAG 1 //′í?ó±êê?
   
7. #define SUCFLAG 0 //3é1|±êê?
   
8. #define EXIST 1 //′??ú±êê?
   
9. #define NOTEXIST 0 //2?′??ú±êê?
   
10. 
    
11. struct item
    
12. {
    
13. char itemname;
    
14. unsigned int itemtarget;
    
15. unsigned int itemsum;
    
16. };
    
17. 
    
18. struct itemsale
    
19. {
    
20. unsigned int itemnum;
    
21. unsigned int salenum;
    
22. };
    
23. 
    
24. struct saveitem
    
25. {
    
26. unsigned int itemcode;
    
27. struct item itemnode;
    
28. };
    
29. 
    
30. struct deletenode
    
31. {
    
32. struct saveitem first;
    
33. struct deletenode *next;
    
34. };
    
35. 
    
36. typedef item ITEM;
    
37. typedef itemsale ITEMSALE;
    
38. typedef saveitem SAVEITEM;
    
39. typedef deletenode DELETENODE;
    
40. 
    
41. int additem(void);
    
42. int recorditem(void);
    
43. int deleteitem(void);
    
44. int dispitem(void);
    
45. int dispsales(void);
    
46. 
    
47. int main(int argc, char *argv[])
    
48. {
    
49. short int choice;
    
50. 
    
51. printf("********************************************");
    
52. printf("\n\n----------Sales Monitoring System---------");
    
53. printf("\n 1. Add new item details");
    
54. printf("\n 2. Record sale details");
    
55. printf("\n 3. Delete existing item details");
    
56. printf("\n 4. Display sale details based on item number");
    
57. printf("\n 5. Display report on salses target achieved items");
    
58. printf("\n 6. Quit");
    
59. printf("\nPlease enter you choice:");
    
60. scanf("%d",&choice);
    
61. 
    
62. while(6!=choice)
    
63. {
    
64. switch(choice)
    
65. {
    
66. case 1:
    
67. additem();
    
68. break;
    
69. case 2:
    
70. recorditem();
    
71. break;
    
72. case 3:
    
73. deleteitem();
    
74. break;
    
75. case 4:
    
76. dispitem();
    
77. break;
    
78. case 5:
    
79. dispsales();
    
80. break;
    
81. default:
    
82. printf("\nYou have enter a wrong number,please input a integer between 1--6\n");
    
83. }
    
84. printf("\n********************************************");
    
85. printf("\n\n----------Sales Monitoring System---------");
    
86. printf("\n 1. Add new item details");
    
87. printf("\n 2. Record sale details");
    
88. printf("\n 3. Delete existing item details");
    
89. printf("\n 4. Display sale details based on item number");
    
90. printf("\n 5. Display report on salses target achieved items");
    
91. printf("\n 6. Quit");
    
92. printf("\nPlease enter you choice:");
    
93. scanf("%d",&choice);
    
94. }
    
95. printf("\nYou have choice to quit, please waiting......");
    
96. printf("\nThe program will be quit, \nplease press any key to continue");
    
97. choice=getc(stdin);
    
98. return 1;
    
99. }
    
100. 
     
101. int additem(void)
     
102. {
     
103. ITEM add;
     
104. FILE *fp;
     
105. SAVEITEM save;
     
106. short int i;
     
107. long int filelen;
     
108. 
     
109. printf("\nPlease enter the item's name:");
     
110. scanf("%s",&add.itemname);
     
111. i=strlen(&add.itemname);
     
112. while(i>=20 || i<=0 )
     
113. {
     
114. printf("\nThe name which you have input is too long or too short,the length shoule between 1 to 20!");
     
115. printf("\nPlease input again:");
     
116. i=scanf("%s",&add.itemname);
     
117. }
     
118. printf("\nPlease input the target of the new item:");
     
119. scanf("%d",&add.itemtarget);
     
120. printf("\nPlease input the sales sum of the item:");
     
121. scanf("%d",&add.itemsum);
     
122. 
     
123. if(NULL==(fp=fopen("item.dat","a+")))
     
124. {
     
125. printf("\nCan not open the file \"item.dat\".");
     
126. return ERRFLAG;
     
127. }
     
128. if(!feof(fp))
     
129. {
     
130. fseek(fp,0L,SEEK_END);
     
131. filelen=ftell(fp);
     
132. 
     
133. }
     
134. if(filelen<=0)
     
135. {
     
136. save.itemcode=1;
     
137. }
     
138. else
     
139. {
     
140. fread(&save,sizeof(SAVEITEM),1,fp);
     
141. save.itemcode++;
     
142. }
     
143. strcpy(&save.itemnode.itemname,&add.itemname);
     
144. save.itemnode.itemsum=add.itemsum;
     
145. save.itemnode.itemtarget=add.itemtarget;
     
146. fseek(fp,0L,SEEK_END);
     
147. fwrite(&save,sizeof(SAVEITEM),1,fp);
     
148. fclose(fp);
     
149. 
     
150. return SUCFLAG;
     
151. }
     
152. 
     
153. int recorditem(void)
     
154. {
     
155. ITEM record; //????item.dat?áè?μ?êy?Y
     
156. ITEMSALE sale; //????òa′?′￠μ?sales.dat?Dμ?êy?Y
     
157. SAVEITEM save; //±￡′?μ?item.dat?Dêy?Y
     
158. //long int count; //ó?à′′?′￠???t3¤?è
     
159. short int exist;
     
160. //unsigned int num; //ó?à′áùê±′?′￠′óitem.dat?D?áè?μ?êy?Y
     
161. FILE *fpitem,
     
162. *fpsales;
     
163. 
     
164. //ê?è?????
     
165. printf("\nPlease enter the item number you want to record:");
     
166. scanf("%d",&sale.itemnum);
     
167. while(sale.itemnum <=0)
     
168. {
     
169. printf("\nYou have enter a wrong number,the item number must great then 0.");
     
170. printf("\nPlease enter the item number you want to record again:");
     
171. scanf("%d",&sale.itemnum);
     
172. }
     
173. //ê?è??úê?êyá?
     
174. printf("\nPlease enter the sale acount you want to record:");
     
175. scanf("%d",&sale.salenum);
     
176. while(sale.salenum<=0)
     
177. {
     
178. printf("\nYou have enter a wrong number, the sale's acount must great then 0.");
     
179. printf("\nPlease enter the sale sum you want to record again:");
     
180. scanf("%d",&sale.salenum);
     
181. }
     
182. //ê?è??úê??e??
     
183. printf("\nPlease enter the sale's sum you want record:");
     
184. scanf("%d",&record.itemsum);
     
185. while(record.itemsum<=0)
     
186. {
     
187. printf("\nYou have enter a wrong number, the sale's sum must great then 0.");
     
188. printf("\nPlease enter the sale's sum you want record again:");
     
189. scanf("%u",&record.itemsum);
     
190. }
     
191. //′óitem.dat?D?áè?êy?Y 2é?′ê?·?′??úòa±￡′?μ?????,2￠±￡′?êy?Y
     
192. if(NULL==(fpitem=fopen("item.dat","r+")))
     
193. {
     
194. printf("Can not open the file \"item.dat\",Please check it!");
     
195. return ERRFLAG;
     
196. }
     
197. exist=NOTEXIST;
     
198. while(!feof(fpitem))
     
199. {
     
200. fread(&save,sizeof(SAVEITEM),1,fpitem);
     
201. if(save.itemcode==sale.itemnum)
     
202. {
     
203. fseek(fpitem,-(long)(sizeof(SAVEITEM)) ,SEEK_CUR);
     
204. save.itemcode =sale.itemnum;
     
205. save.itemnode.itemsum=record.itemsum;
     
206. fwrite(&save,sizeof(SAVEITEM),1,fpitem);
     
207. exist=EXIST;
     
208. break;
     
209. }
     
210. }
     
211. //è?1?′??ú????￡??ò±￡′?D??￠μ?sales.dat, ·??òí?3?
     
212. if(NOTEXIST==exist)
     
213. {
     
214. printf("\nNot such a item number exist in the file \"item.dat\",\nPlease check it befor you record.\n");
     
215. return ERRFLAG;
     
216. }
     
217. else if(NULL==(fpsales=fopen("sales.dat","a+")))
     
218. {
     
219. printf("\nCan not open the file \"sales.dat\", Please check it befor you record.");
     
220. return ERRFLAG;
     
221. }
     
222. fwrite(&sale,sizeof(ITEMSALE),1,fpsales);
     
223. fclose(fpitem);
     
224. fclose(fpsales);
     
225. 
     
226. return SUCFLAG;
     
227. }
     
228. 
     
229. int deleteitem(void)
     
230. {
     
231. unsigned int itemnum;
     
232. short int exist;
     
233. SAVEITEM save;
     
234. DELETENODE *header,
     
235. *psecond,
     
236. *pfirst,
     
237. *p;
     
238. 
     
239. FILE *fp;
     
240. 
     
241. //ê?è?′yé?3yμ?????′ú??
     
242. printf("\nPleae enter the item number you want to delete:");
     
243. scanf("%d",&itemnum);
     
244. if(NULL==(fp=fopen("item.dat","r")))
     
245. {
     
246. printf("\nCan not open the file \"item.dat\",Please check it befor delete item!");
     
247. return ERRFLAG;
     
248. }
     
249. 
     
250. exist=NOTEXIST;
     
251. while(!feof(fp))
     
252. {
     
253. fread(&save,sizeof(SAVEITEM),1,fp);
     
254. if(save.itemcode == itemnum)
     
255. {
     
256. exist=EXIST;
     
257. break;
     
258. }
     
259. }
     
260. if(NOTEXIST==exist) //??óD????′ú???íí?3?
     
261. {
     
262. printf("\nNot such a item number what you want to delete in the file \"item.dat\",\nPlease check it befor you delete!");
     
263. return ERRFLAG;
     
264. }
     
265. //?′DD????μ?′ú???í±íê?ò??¨óD′yé?3yμ?????
     
266. //??D??¨??μ????t?aê?′|?áè????t?úèY
     
267. fseek(fp,0L,SEEK_SET);
     
268. fread(&save,sizeof(SAVEITEM),1,fp); //?áè?μúò????á11μ??úèY
     
269. 
     
270. pfirst=psecond=(DELETENODE *)malloc(sizeof(DELETENODE));
     
271. header=pfirst; //á′±íμ?í·2?
     
272. pfirst->first.itemcode=save.itemcode;
     
273. strcpy(&pfirst->first.itemnode.itemname,&save.itemnode.itemname);
     
274. pfirst->first.itemnode.itemsum=save.itemnode.itemsum;
     
275. pfirst->first.itemnode.itemtarget=save.itemnode.itemtarget;
     
276. while(!feof(fp))
     
277. {
     
278. psecond->next=pfirst;
     
279. psecond=pfirst;
     
280. pfirst=(DELETENODE *)(malloc(sizeof(DELETENODE)));
     
281. fread(&save,sizeof(SAVEITEM),1,fp);
     
282. pfirst->first.itemcode=save.itemcode;
     
283. strcpy(&pfirst->first.itemnode.itemname,&save.itemnode.itemname);
     
284. pfirst->first.itemnode.itemsum=save.itemnode.itemsum;
     
285. pfirst->first.itemnode.itemtarget=save.itemnode.itemtarget;
     
286. }
     
287. psecond->next=NULL;
     
288. fclose(fp);
     
289. 
     
290. //?ì2é????á′±í é?3yó?′yé?3y?????àí?μ??a???a??
     
291. //?ì2éê×?a??￡?μ±ê×?a???àí?ê±
     
292. if(header->first.itemcode==itemnum)
     
293. {
     
294. p=header->next;
     
295. header=p;
     
296. }
     
297. else //·?ê×?a??ê±′|àíμ??é??
     
298. {
     
299. p=pfirst=header;
     
300. 
     
301. while(NULL!=p->next)
     
302. {
     
303. pfirst=p->next;
     
304. if(p->first.itemcode==itemnum)
     
305. {
     
306. pfirst=p;
     
307. p=pfirst->next;
     
308. break;
     
309. }
     
310. pfirst=p;
     
311. p=pfirst->next;
     
312. }
     
313. }
     
314. //??′|àííêμ?á′±íêy?Y??D?D′è????t
     
315. if(NULL==(fp=fopen("item.dat","w")))
     
316. {
     
317. printf("\nCan not open the file \"item.dat\",Please check it before delete a item!");
     
318. return ERRFLAG;
     
319. }
     
320. p=header;
     
321. save.itemcode=p->first.itemcode;
     
322. strcpy(&p->first.itemnode.itemname,&save.itemnode.itemname);
     
323. save.itemnode.itemsum=p->first.itemnode.itemsum;
     
324. save.itemnode.itemtarget=p->first.itemnode.itemtarget;
     
325. fwrite(&save,sizeof(SAVEITEM),1,fp);
     
326. while(NULL != p->next)
     
327. {
     
328. pfirst=p->next;
     
329. p=pfirst;
     
330. save.itemcode=p->first.itemcode;
     
331. strcpy(&save.itemnode.itemname,&p->first.itemnode.itemname);
     
332. save.itemnode.itemsum=p->first.itemnode.itemsum;
     
333. save.itemnode.itemtarget=p->first.itemnode.itemtarget;
     
334. fwrite(&save,sizeof(SAVEITEM),1,fp);
     
335. }
     
336. fclose(fp);
     
337. 
     
338. return SUCFLAG;
     
339. }
     
340. 
     
341. int dispitem(void)
     
342. {
     
343. FILE *fp;
     
344. SAVEITEM save;
     
345. 
     
346. if(NULL==(fp=fopen("item.dat","r")))
     
347. {
     
348. printf("\nCan not open the file \"item.dat\",Please check it befor display!");
     
349. return ERRFLAG;
     
350. }
     
351. fread(&save,sizeof(SAVEITEM),1,fp);
     
352. printf("\nItem number\tItem name\tItem sum\tItem target");
     
353. printf("\n%d\t\t%s\t\t%d\t\t%d",save.itemcode,&save.itemnode.itemname,save.itemnode.itemsum,save.itemnode.itemtarget);
     
354. while(!feof(fp))
     
355. {
     
356. fread(&save,sizeof(SAVEITEM),1,fp);
     
357. printf("\n%u\t\t%s\t\t%d\t\t%d",save.itemcode,&save.itemnode.itemname,save.itemnode.itemsum,save.itemnode.itemtarget);
     
358. }
     
359. 
     
360. return SUCFLAG;
     
361. }
     
362. 
     
363. int dispsales(void)
     
364. {
     
365. FILE *fp;
     
366. ITEMSALE sale;
     
367. 
     
368. if(NULL==(fp=fopen("sales.dat","r")))
     
369. {
     
370. printf("\nCan not open the file \"sales.dat\",Please check it befor display");
     
371. return ERRFLAG;
     
372. }
     
373. 
     
374. printf("\nItem number\tItem saled number");
     
375. while(!feof(fp))
     
376. {
     
377. fread(&sale,sizeof(ITEMSALE),1,fp);
     
378. printf("\n%d\t\t\t%d",sale.itemnum,sale.salenum);
     
379. }
     
380. 
     
381. return SUCFLAG;
     
382. }

复制代码

傲天鹰

哇！顶一个

volcanol

但是 还是有点问题   数据结构太复杂了

volcanol

不好 意思  下次来把注释弄上

jbstasrs

哇！顶一个

chutianying

:victory::victory:

jiang429251184

好强大好强大，看不懂。

春芽ing

不会吧!!!!!