小寒教程：教你如何精简 ROM 语言
ROM 很多用不到的语言是不是很麻烦？想精简自己的 ROM 语言？小寒教你精简 ROM
语言
注：不适用于 CM（包括 MIUI 等基于 CM 二次开发的系统）此类系统需要在编译时修
改变量，较为麻烦，这里不详细说明了
——题记
教程开始：
1.打开 system/customize/cid/
2 查找：<item name="total_list">
3.找到例如：
1. <item name="total_list">zh_CN;zh_TW;en_US;</item> /*这段代码
是中文简体，中文繁体，英文*/
2. <item type="boolean" name="zh_CN">yes</item>
3. <item type="boolean" name="zh_TW">yes</item>
4. <item type="boolean" name="en_US">yes</item> /*如果需要英
文第一就把 en_US 放到 zh_CN 前面，不要忘了";"*/
复制代码
这边是比较全的代码：
这边就是告诉你如何增加和精简，不要说我没写如何精简语言，添加删除就这么简单
本帖隐藏的内容
1. <item type="boolean" name="zh_CN">yes</item>
2. <item type="boolean" name="zh_TW">yes</item>
3. <item type="boolean" name="bg_BG">yes</item>
4. <item type="boolean" name="bg_BY">yes</item>
5. <item type="boolean" name="bg_CS">yes</item>
6. <item type="boolean" name="bg_CZ">yes</item>
7. <item type="boolean" name="bg_EE">yes</item>
8. <item type="boolean" name="bg_HR">yes</item>
9. <item type="boolean" name="bg_HU">yes</item>
10. <item type="boolean" name="bg_LT">yes</item>
11. <item type="boolean" name="bg_LV">yes</item>
12. <item type="boolean" name="bg_PL">yes</item>
13. <item type="boolean" name="bg_RO">yes</item>
14. <item type="boolean" name="bg_SI">yes</item>
15. <item type="boolean" name="bg_SK">yes</item>
16. <item type="boolean" name="bg_UA">yes</item>
17. <item type="boolean" name="cs_BG">yes</item>
18. <item type="boolean" name="cs_BY">yes</item>
19. <item type="boolean" name="cs_CS">yes</item>
20. <item type="boolean" name="cs_CZ">yes</item>
21. <item type="boolean" name="cs_EE">yes</item>
22. <item type="boolean" name="cs_HR">yes</item>
23. <item type="boolean" name="cs_HU">yes</item>
24. <item type="boolean" name="cs_LT">yes</item>
25. <item type="boolean" name="cs_LV">yes</item>
26. <item type="boolean" name="cs_PL">yes</item>
27. <item type="boolean" name="cs_RO">yes</item>
28. <item type="boolean" name="cs_SI">yes</item>
29. <item type="boolean" name="cs_SK">yes</item>
30. <item type="boolean" name="cs_UA">yes</item>
31. <item type="boolean" name="da_DK">yes</item>
32. <item type="boolean" name="da_FI">yes</item>
33. <item type="boolean" name="da_NO">yes</item>
34. <item type="boolean" name="da_SE">yes</item>
35. <item type="boolean" name="de_AO">yes</item>
36. <item type="boolean" name="de_AT">yes</item>
37. <item type="boolean" name="de_BE">yes</item>
38. <item type="boolean" name="de_CH">yes</item>
39. <item type="boolean" name="de_CY">yes</item>
40. <item type="boolean" name="de_DE">yes</item>
41. <item type="boolean" name="de_ES">yes</item>
42. <item type="boolean" name="de_FR">yes</item>
43. <item type="boolean" name="de_GB">yes</item>
44. <item type="boolean" name="de_GH">yes</item>
45. <item type="boolean" name="de_GR">yes</item>
46. <item type="boolean" name="de_IE">yes</item>
47. <item type="boolean" name="de_IT">yes</item>
48. <item type="boolean" name="de_KE">yes</item>
49. <item type="boolean" name="de_LU">yes</item>
50. <item type="boolean" name="de_MU">yes</item>
51. <item type="boolean" name="de_MZ">yes</item>
52. <item type="boolean" name="de_NA">yes</item>
53. <item type="boolean" name="de_NG">yes</item>
54. <item type="boolean" name="de_NL">yes</item>
55. <item type="boolean" name="de_PT">yes</item>
56. <item type="boolean" name="de_ZA">yes</item>
57. <item type="boolean" name="el_CY">yes</item>
58. <item type="boolean" name="el_ES">yes</item>
59. <item type="boolean" name="el_GR">yes</item>
60. <item type="boolean" name="el_PT">yes</item>
61. <item type="boolean" name="en_AE">yes</item>
62. <item type="boolean" name="en_AM">yes</item>
63. <item type="boolean" name="en_AO">yes</item>
64. <item type="boolean" name="en_AT">yes</item>
65. <item type="boolean" name="en_AZ">yes</item>
66. <item type="boolean" name="en_BE">yes</item>
67. <item type="boolean" name="en_BG">yes</item>
68. <item type="boolean" name="en_BH">yes</item>
69. <item type="boolean" name="en_BY">yes</item>
70. <item type="boolean" name="en_CH">yes</item>
71. <item type="boolean" name="en_CS">yes</item>
72. <item type="boolean" name="en_CY">yes</item>
73. <item type="boolean" name="en_CZ">yes</item>
74. <item type="boolean" name="en_DE">yes</item>
75. <item type="boolean" name="en_DK">yes</item>
76. <item type="boolean" name="en_DZ">yes</item>
77. <item type="boolean" name="en_EE">yes</item>
78. <item type="boolean" name="en_EG">yes</item>
79. <item type="boolean" name="en_ES">yes</item>
80. <item type="boolean" name="en_FI">yes</item>
81. <item type="boolean" name="en_FR">yes</item>
82. <item type="boolean" name="en_GB">yes</item>
83. <item type="boolean" name="en_GE">yes</item>
84. <item type="boolean" name="en_GH">yes</item>
85. <item type="boolean" name="en_GR">yes</item>
86. <item type="boolean" name="en_HR">yes</item>
87. <item type="boolean" name="en_HU">yes</item>
88. <item type="boolean" name="en_IE">yes</item>
89. <item type="boolean" name="en_IN">yes</item>
90. <item type="boolean" name="en_IQ">yes</item>
91. <item type="boolean" name="en_IT">yes</item>
92. <item type="boolean" name="en_JO">yes</item>
93. <item type="boolean" name="en_KE">yes</item>
94. <item type="boolean" name="en_KW">yes</item>
95. <item type="boolean" name="en_KZ">yes</item>
96. <item type="boolean" name="en_LB">yes</item>
97. <item type="boolean" name="en_LT">yes</item>
98. <item type="boolean" name="en_LU">yes</item>
99. <item type="boolean" name="en_LV">yes</item>
100. <item type="boolean" name="en_LY">yes</item>
101. <item type="boolean" name="en_MA">yes</item>
102. <item type="boolean" name="en_MU">yes</item>
103. <item type="boolean" name="en_MZ">yes</item>
104. <item type="boolean" name="en_NA">yes</item>
105. <item type="boolean" name="en_NG">yes</item>
106. <item type="boolean" name="en_NL">yes</item>
107. <item type="boolean" name="en_NO">yes</item>
108. <item type="boolean" name="en_OM">yes</item>
109. <item type="boolean" name="en_PL">yes</item>
110. <item type="boolean" name="en_PT">yes</item>
111. <item type="boolean" name="en_QA">yes</item>
112. <item type="boolean" name="en_RO">yes</item>
113. <item type="boolean" name="en_RU">yes</item>
114. <item type="boolean" name="en_SA">yes</item>
115. <item type="boolean" name="en_SE">yes</item>
116. <item type="boolean" name="en_SI">yes</item>
117. <item type="boolean" name="en_SK">yes</item>
118. <item type="boolean" name="en_TN">yes</item>
119. <item type="boolean" name="en_TR">yes</item>
120. <item type="boolean" name="en_UA">yes</item>
121. <item type="boolean" name="en_ZA">yes</item>
122. <item type="boolean" name="es_CY">yes</item>
123. <item type="boolean" name="es_ES">yes</item>
124. <item type="boolean" name="es_FR">yes</item>
125. <item type="boolean" name="es_GB">yes</item>
126. <item type="boolean" name="es_GR">yes</item>
127. <item type="boolean" name="es_IE">yes</item>
128. <item type="boolean" name="es_IT">yes</item>
129. <item type="boolean" name="es_PT">yes</item>
130. <item type="boolean" name="et_BG">yes</item>
131. <item type="boolean" name="et_BY">yes</item>
132. <item type="boolean" name="et_CS">yes</item>
133. <item type="boolean" name="et_CZ">yes</item>
134. <item type="boolean" name="et_EE">yes</item>
135. <item type="boolean" name="et_HR">yes</item>
136. <item type="boolean" name="et_HU">yes</item>
137. <item type="boolean" name="et_LT">yes</item>
138. <item type="boolean" name="et_LV">yes</item>
139. <item type="boolean" name="et_PL">yes</item>
140. <item type="boolean" name="et_RO">yes</item>
141. <item type="boolean" name="et_SI">yes</item>
142. <item type="boolean" name="et_SK">yes</item>
143. <item type="boolean" name="et_UA">yes</item>
144. <item type="boolean" name="fi_DK">yes</item>
145. <item type="boolean" name="fi_FI">yes</item>
146. <item type="boolean" name="fi_NO">yes</item>
147. <item type="boolean" name="fi_SE">yes</item>
148. <item type="boolean" name="fr_AE">yes</item>
149. <item type="boolean" name="fr_AO">yes</item>
150. <item type="boolean" name="fr_AT">yes</item>
151. <item type="boolean" name="fr_BE">yes</item>
152. <item type="boolean" name="fr_BH">yes</item>
153. <item type="boolean" name="fr_CH">yes</item>
154. <item type="boolean" name="fr_CY">yes</item>
155. <item type="boolean" name="fr_DE">yes</item>
156. <item type="boolean" name="fr_DZ">yes</item>
157. <item type="boolean" name="fr_EG">yes</item>
158. <item type="boolean" name="fr_ES">yes</item>
159. <item type="boolean" name="fr_FR">yes</item>
160. <item type="boolean" name="fr_GB">yes</item>
161. <item type="boolean" name="fr_GH">yes</item>
162. <item type="boolean" name="fr_GR">yes</item>
163. <item type="boolean" name="fr_IE">yes</item>
164. <item type="boolean" name="fr_IQ">yes</item>
165. <item type="boolean" name="fr_IT">yes</item>
166. <item type="boolean" name="fr_JO">yes</item>
167. <item type="boolean" name="fr_KE">yes</item>
168. <item type="boolean" name="fr_KW">yes</item>
169. <item type="boolean" name="fr_LB">yes</item>
170. <item type="boolean" name="fr_LU">yes</item>
171. <item type="boolean" name="fr_LY">yes</item>
172. <item type="boolean" name="fr_MA">yes</item>
173. <item type="boolean" name="fr_MU">yes</item>
174. <item type="boolean" name="fr_MZ">yes</item>
175. <item type="boolean" name="fr_NA">yes</item>
176. <item type="boolean" name="fr_NG">yes</item>
177. <item type="boolean" name="fr_NL">yes</item>
178. <item type="boolean" name="fr_OM">yes</item>
179. <item type="boolean" name="fr_PT">yes</item>
180. <item type="boolean" name="fr_QA">yes</item>
181. <item type="boolean" name="fr_SA">yes</item>
182. <item type="boolean" name="fr_TN">yes</item>
183. <item type="boolean" name="fr_ZA">yes</item>
184. <item type="boolean" name="hr_BG">yes</item>
185. <item type="boolean" name="hr_BY">yes</item>
186. <item type="boolean" name="hr_CS">yes</item>
187. <item type="boolean" name="hr_CZ">yes</item>
188. <item type="boolean" name="hr_EE">yes</item>
189. <item type="boolean" name="hr_HR">yes</item>
190. <item type="boolean" name="hr_HU">yes</item>
191. <item type="boolean" name="hr_LT">yes</item>
192. <item type="boolean" name="hr_LV">yes</item>
193. <item type="boolean" name="hr_PL">yes</item>
194. <item type="boolean" name="hr_RO">yes</item>
195. <item type="boolean" name="hr_SI">yes</item>
196. <item type="boolean" name="hr_SK">yes</item>
197. <item type="boolean" name="hr_UA">yes</item>
198. <item type="boolean" name="hu_BG">yes</item>
199. <item type="boolean" name="hu_BY">yes</item>
200. <item type="boolean" name="hu_CS">yes</item>
201. <item type="boolean" name="hu_CZ">yes</item>
202. <item type="boolean" name="hu_EE">yes</item>
203. <item type="boolean" name="hu_HR">yes</item>
204. <item type="boolean" name="hu_HU">yes</item>
205. <item type="boolean" name="hu_LT">yes</item>
206. <item type="boolean" name="hu_LV">yes</item>
207. <item type="boolean" name="hu_PL">yes</item>
208. <item type="boolean" name="hu_RO">yes</item>
209. <item type="boolean" name="hu_SI">yes</item>
210. <item type="boolean" name="hu_SK">yes</item>
211. <item type="boolean" name="hu_UA">yes</item>
212. <item type="boolean" name="it_AT">yes</item>
213. <item type="boolean" name="it_CH">yes</item>
214. <item type="boolean" name="it_DE">yes</item>
215. <item type="boolean" name="it_FR">yes</item>
216. <item type="boolean" name="it_GB">yes</item>
217. <item type="boolean" name="it_IE">yes</item>
218. <item type="boolean" name="it_IT">yes</item>
219. <item type="boolean" name="lt_BG">yes</item>
220. <item type="boolean" name="lt_BY">yes</item>
221. <item type="boolean" name="lt_CS">yes</item>
222. <item type="boolean" name="lt_CZ">yes</item>
223. <item type="boolean" name="lt_EE">yes</item>
224. <item type="boolean" name="lt_HR">yes</item>
225. <item type="boolean" name="lt_HU">yes</item>
226. <item type="boolean" name="lt_LT">yes</item>
227. <item type="boolean" name="lt_LV">yes</item>
228. <item type="boolean" name="lt_PL">yes</item>
229. <item type="boolean" name="lt_RO">yes</item>
230. <item type="boolean" name="lt_SI">yes</item>
231. <item type="boolean" name="lt_SK">yes</item>
232. <item type="boolean" name="lt_UA">yes</item>
233. <item type="boolean" name="lv_BG">yes</item>
234. <item type="boolean" name="lv_BY">yes</item>
235. <item type="boolean" name="lv_CS">yes</item>
236. <item type="boolean" name="lv_CZ">yes</item>
237. <item type="boolean" name="lv_EE">yes</item>
238. <item type="boolean" name="lv_HR">yes</item>
239. <item type="boolean" name="lv_HU">yes</item>
240. <item type="boolean" name="lv_LT">yes</item>
241. <item type="boolean" name="lv_LV">yes</item>
242. <item type="boolean" name="lv_PL">yes</item>
243. <item type="boolean" name="lv_RO">yes</item>
244. <item type="boolean" name="lv_SI">yes</item>
245. <item type="boolean" name="lv_SK">yes</item>
246. <item type="boolean" name="lv_UA">yes</item>
247. <item type="boolean" name="nb_DK">yes</item>
248. <item type="boolean" name="nb_FI">yes</item>
249. <item type="boolean" name="nb_NO">yes</item>
250. <item type="boolean" name="nb_SE">yes</item>
251. <item type="boolean" name="nl_BE">yes</item>
252. <item type="boolean" name="nl_FR">yes</item>
253. <item type="boolean" name="nl_LU">yes</item>
254. <item type="boolean" name="nl_NL">yes</item>
255. <item type="boolean" name="pl_BG">yes</item>
256. <item type="boolean" name="pl_BY">yes</item>
257. <item type="boolean" name="pl_CS">yes</item>
258. <item type="boolean" name="pl_CZ">yes</item>
259. <item type="boolean" name="pl_EE">yes</item>
260. <item type="boolean" name="pl_GB">yes</item>
261. <item type="boolean" name="pl_HR">yes</item>
262. <item type="boolean" name="pl_HU">yes</item>
263. <item type="boolean" name="pl_IE">yes</item>
264. <item type="boolean" name="pl_LT">yes</item>
265. <item type="boolean" name="pl_LV">yes</item>
266. <item type="boolean" name="pl_PL">yes</item>
267. <item type="boolean" name="pl_RO">yes</item>
268. <item type="boolean" name="pl_SI">yes</item>
269. <item type="boolean" name="pl_SK">yes</item>
270. <item type="boolean" name="pl_UA">yes</item>
271. <item type="boolean" name="pt_AO">yes</item>
272. <item type="boolean" name="pt_CY">yes</item>
273. <item type="boolean" name="pt_ES">yes</item>
274. <item type="boolean" name="pt_FR">yes</item>
275. <item type="boolean" name="pt_GH">yes</item>
276. <item type="boolean" name="pt_GR">yes</item>
277. <item type="boolean" name="pt_KE">yes</item>
278. <item type="boolean" name="pt_MU">yes</item>
279. <item type="boolean" name="pt_MZ">yes</item>
280. <item type="boolean" name="pt_NA">yes</item>
281. <item type="boolean" name="pt_NG">yes</item>
282. <item type="boolean" name="pt_PT">yes</item>
283. <item type="boolean" name="pt_ZA">yes</item>
284. <item type="boolean" name="ro_BG">yes</item>
285. <item type="boolean" name="ro_BY">yes</item>
286. <item type="boolean" name="ro_CS">yes</item>
287. <item type="boolean" name="ro_CZ">yes</item>
288. <item type="boolean" name="ro_EE">yes</item>
289. <item type="boolean" name="ro_HR">yes</item>
290. <item type="boolean" name="ro_HU">yes</item>
291. <item type="boolean" name="ro_LT">yes</item>
292. <item type="boolean" name="ro_LV">yes</item>
293. <item type="boolean" name="ro_PL">yes</item>
294. <item type="boolean" name="ro_RO">yes</item>
295. <item type="boolean" name="ro_SI">yes</item>
296. <item type="boolean" name="ro_SK">yes</item>
297. <item type="boolean" name="ro_UA">yes</item>
298. <item type="boolean" name="ru_AM">yes</item>
299. <item type="boolean" name="ru_AZ">yes</item>
300. <item type="boolean" name="ru_BG">yes</item>
301. <item type="boolean" name="ru_BY">yes</item>
302. <item type="boolean" name="ru_CS">yes</item>
303. <item type="boolean" name="ru_CZ">yes</item>
304. <item type="boolean" name="ru_EE">yes</item>
305. <item type="boolean" name="ru_GE">yes</item>
306. <item type="boolean" name="ru_HR">yes</item>
307. <item type="boolean" name="ru_HU">yes</item>
308. <item type="boolean" name="ru_KZ">yes</item>
309. <item type="boolean" name="ru_LT">yes</item>
310. <item type="boolean" name="ru_LV">yes</item>
311. <item type="boolean" name="ru_PL">yes</item>
312. <item type="boolean" name="ru_RO">yes</item>
313. <item type="boolean" name="ru_RU">yes</item>
314. <item type="boolean" name="ru_SI">yes</item>
315. <item type="boolean" name="ru_SK">yes</item>
316. <item type="boolean" name="ru_UA">yes</item>
317. <item type="boolean" name="sk_BG">yes</item>
318. <item type="boolean" name="sk_BY">yes</item>
319. <item type="boolean" name="sk_CS">yes</item>
320. <item type="boolean" name="sk_CZ">yes</item>
321. <item type="boolean" name="sk_EE">yes</item>
322. <item type="boolean" name="sk_HR">yes</item>
323. <item type="boolean" name="sk_HU">yes</item>
324. <item type="boolean" name="sk_LT">yes</item>
325. <item type="boolean" name="sk_LV">yes</item>
326. <item type="boolean" name="sk_PL">yes</item>
327. <item type="boolean" name="sk_RO">yes</item>
328. <item type="boolean" name="sk_SI">yes</item>
329. <item type="boolean" name="sk_SK">yes</item>
330. <item type="boolean" name="sk_UA">yes</item>
331. <item type="boolean" name="sl_BG">yes</item>
332. <item type="boolean" name="sl_BY">yes</item>
333. <item type="boolean" name="sl_CS">yes</item>
334. <item type="boolean" name="sl_CZ">yes</item>
335. <item type="boolean" name="sl_EE">yes</item>
336. <item type="boolean" name="sl_HR">yes</item>
337. <item type="boolean" name="sl_HU">yes</item>
338. <item type="boolean" name="sl_LT">yes</item>
339. <item type="boolean" name="sl_LV">yes</item>
340. <item type="boolean" name="sl_PL">yes</item>
341. <item type="boolean" name="sl_RO">yes</item>
342. <item type="boolean" name="sl_SI">yes</item>
343. <item type="boolean" name="sl_SK">yes</item>
344. <item type="boolean" name="sl_UA">yes</item>
345. <item type="boolean" name="sr_BG">yes</item>
346. <item type="boolean" name="sr_BY">yes</item>
347. <item type="boolean" name="sr_CS">yes</item>
348. <item type="boolean" name="sr_CZ">yes</item>
349. <item type="boolean" name="sr_EE">yes</item>
350. <item type="boolean" name="sr_HR">yes</item>
351. <item type="boolean" name="sr_HU">yes</item>
352. <item type="boolean" name="sr_LT">yes</item>
353. <item type="boolean" name="sr_LV">yes</item>
354. <item type="boolean" name="sr_PL">yes</item>
355. <item type="boolean" name="sr_RO">yes</item>
356. <item type="boolean" name="sr_SI">yes</item>
357. <item type="boolean" name="sr_SK">yes</item>
358. <item type="boolean" name="sr_UA">yes</item>
359. <item type="boolean" name="sv_DK">yes</item>
360. <item type="boolean" name="sv_FI">yes</item>
361. <item type="boolean" name="sv_NO">yes</item>
362. <item type="boolean" name="sv_SE">yes</item>
363. <item type="boolean" name="tr_AT">yes</item>
364. <item type="boolean" name="tr_CH">yes</item>
365. <item type="boolean" name="tr_DE">yes</item>
366. <item type="boolean" name="tr_TR">yes</item>
367. <item type="boolean" name="uk_BG">yes</item>
368. <item type="boolean" name="uk_BY">yes</item>
369. <item type="boolean" name="uk_CS">yes</item>
370. <item type="boolean" name="uk_CZ">yes</item>
371. <item type="boolean" name="uk_EE">yes</item>
372. <item type="boolean" name="uk_HR">yes</item>
373. <item type="boolean" name="uk_HU">yes</item>
374. <item type="boolean" name="uk_LT">yes</item>
375. <item type="boolean" name="uk_LV">yes</item>
376. <item type="boolean" name="uk_PL">yes</item>
377. <item type="boolean" name="uk_RO">yes</item>
378. <item type="boolean" name="uk_SI">yes</item>
379. <item type="boolean" name="uk_SK">yes</item>
380. <item type="boolean" name="uk_UA">yes</item>
复制代码
附录资料:不需要的可以自行删除
Abstract: Based on the comprehensive analysis on the plastic part’s structure service requirement,
mounding quality and mould menu factoring cost. A corresponding injection mould of internal
side core pulling was designed. By adopting the multi-direction and multi-combination
core-pulling. A corresponding injection mould of internal side core pulling was designed, the
working process of the mould was introduced
C 语言详解 - 枚举类型
注：以下全部代码的执行环境为 VC++
在程序中，可能需要为某些整数定义一个别名，我们可以利用预处理指令#define 来完成这
项工作，您的代码可能是：
#define MON 1
#define TUE 2
#define WED 3
#define THU 4
#define FRI 5
#define SAT 6
#define SUN 7
在此，我们定义一种新的数据类型，希望它能完成同样的工作。这种新的数据类型叫枚举型。
1. 定义一种新的数据类型 - 枚举型
以下代码定义了这种新的数据类型 - 枚举型
enum DAY
{
MON=1, TUE, WED, THU, FRI, SAT, SUN
};
(1) 枚举型是一个集合，集合中的元素(枚举成员)是一些命名的整型常量，元素之间用逗号,
隔开。
(2) DAY 是一个标识符，可以看成这个集合的名字，是一个可选项，即是可有可无的项。
(3) 第一个枚举成员的默认值为整型的 0，后续枚举成员的值在前一个成员上加 1。
(4) 可以人为设定枚举成员的值，从而自定义某个范围内的整数。
(5) 枚举型是预处理指令#define 的替代。
(6) 类型定义以分号;结束。
2. 使用枚举类型对变量进行声明
新的数据类型定义完成后，它就可以使用了。我们已经见过最基本的数据类型，如：整型
int, 单精度浮点型 float, 双精度浮点型 double, 字符型 char, 短整型 short 等等。用这些基本
数据类型声明变量通常是这样：
char a; //变量 a 的类型均为字符型 char
char letter;
int x,
y,
z; //变量 x,y 和 z 的类型均为整型 int
int number;
double m, n;
double result; //变量 result 的类型为双精度浮点型 double
既然枚举也是一种数据类型，那么它和基本数据类型一样也可以对变量进行声明。
方法一：枚举类型的定义和变量的声明分开
enum DAY
{
MON=1, TUE, WED, THU, FRI, SAT, SUN
};
enum DAY yesterday;
enum DAY today;
enum DAY tomorrow; //变量 tomorrow 的类型为枚举型 enum DAY
enum DAY good_day, bad_day; //变量 good_day 和 bad_day 的类型均为枚举型 enum DAY
方法二：类型定义与变量声明同时进行：
enum //跟第一个定义不同的是，此处的标号 DAY 省略，这是允许的。
{
saturday,
sunday = 0,
monday,
tuesday,
wednesday,
thursday,
friday
} workday; //变量 workday 的类型为枚举型 enum DAY
enum week { Mon=1, Tue, Wed, Thu, Fri Sat, Sun} days; //变量 days 的类型为枚举型 enum
week
enum BOOLEAN { false, true } end_flag, match_flag; //定义枚举类型并声明了两个枚举型变
量
方法三：用 typedef 关键字将枚举类型定义成别名，并利用该别名进行变量声明：
typedef enum workday
{
saturday,
sunday = 0,
monday,
tuesday,
wednesday,
thursday,
friday
} workday; //此处的 workday 为枚举型 enum workday 的别名
workday today, tomorrow; //变量 today 和 tomorrow 的类型为枚举型 workday，也即 enum
workday
enum workday 中的 workday 可以省略：
typedef enum
{
saturday,
sunday = 0,
monday,
tuesday,
wednesday,
thursday,
friday
} workday; //此处的 workday 为枚举型 enum workday 的别名
workday today, tomorrow; //变量 today 和 tomorrow 的类型为枚举型 workday，也即 enum
workday
也可以用这种方式：
typedef enum workday
{
saturday,
sunday = 0,
monday,
tuesday,
wednesday,
thursday,
friday
};
workday today, tomorrow; //变量 today 和 tomorrow 的类型为枚举型 workday，也即 enum
workday
注意：同一个程序中不能定义同名的枚举类型，不同的枚举类型中也不能存在同名的命名常
量。错误示例如下所示：
错误声明一：存在同名的枚举类型
typedef enum
{
wednesday,
thursday,
friday
} workday;
typedef enum WEEK
{
saturday,
sunday = 0,
monday,
} workday;
错误声明二：存在同名的枚举成员
typedef enum
{
wednesday,
thursday,
friday
} workday_1;
typedef enum WEEK
{
wednesday,
sunday = 0,
monday,
} workday_2;
3. 使用枚举类型的变量
对枚举型的变量赋值。
实例将枚举类型的赋值与基本数据类型的赋值进行了对比：
方法一：先声明变量，再对变量赋值
#include<>
/* 定义枚举类型 */
enum DAY { MON=1, TUE, WED, THU, FRI, SAT, SUN };
void main()
{
/* 使用基本数据类型声明变量，然后对变量赋值 */
int x, y, z;
x = 10;
y = 20;
z = 30;
/* 使用枚举类型声明变量，再对枚举型变量赋值 */
enum DAY yesterday, today, tomorrow;
yesterday = MON;
today = TUE;
tomorrow = WED;
printf("%d %d %d \n", yesterday, today, tomorrow);
}
方法二：声明变量的同时赋初值
#include <>
/* 定义枚举类型 */
enum DAY { MON=1, TUE, WED, THU, FRI, SAT, SUN };
void main()
{
/* 使用基本数据类型声明变量同时对变量赋初值 */
int x=10, y=20, z=30;
/* 使用枚举类型声明变量同时对枚举型变量赋初值 */
enum DAY yesterday = MON,
today = TUE,
tomorrow = WED;
printf("%d %d %d \n", yesterday, today, tomorrow);
}
方法三：定义类型的同时声明变量，然后对变量赋值。
#include <>
/* 定义枚举类型，同时声明该类型的三个变量，它们都为全局变量 */
enum DAY { MON=1, TUE, WED, THU, FRI, SAT, SUN } yesterday, today, tomorrow;
/* 定义三个具有基本数据类型的变量，它们都为全局变量 */
int x, y, z;
void main()
{
/* 对基本数据类型的变量赋值 */
x = 10; y = 20; z = 30;
/* 对枚举型的变量赋值 */
yesterday = MON;
today = TUE;
tomorrow = WED;
printf("%d %d %d \n", x, y, z); //输出：10 20 30
printf("%d %d %d \n", yesterday, today, tomorrow); //输出：1 2 3
}
方法四：类型定义，变量声明，赋初值同时进行。
#include <>
/* 定义枚举类型，同时声明该类型的三个变量，并赋初值。它们都为全局变量 */
enum DAY
{
MON=1,
TUE,
WED,
THU,
FRI,
SAT,
SUN
}
yesterday = MON, today = TUE, tomorrow = WED;
/* 定义三个具有基本数据类型的变量，并赋初值。它们都为全局变量 */
int x = 10, y = 20, z = 30;
void main()
{
printf("%d %d %d \n", x, y, z); //输出：10 20 30
printf("%d %d %d \n", yesterday, today, tomorrow); //输出：1 2 3
}
对枚举型的变量赋整数值时，需要进行类型转换。
#include <>
enum DAY { MON=1, TUE, WED, THU, FRI, SAT, SUN };
void main()
{
enum DAY yesterday, today, tomorrow;
yesterday = TUE;
today = (enum DAY) (yesterday + 1); //类型转换
tomorrow = (enum DAY) 30; //类型转换
//tomorrow = 3; //错误
printf("%d %d %d \n", yesterday, today, tomorrow); //输出：2 3 30
}
使用枚举型变量
#include<>
enum
{
BELL = '\a',
BACKSPACE = '\b',
HTAB = '\t',
RETURN = '\r',
NEWLINE = '\n',
VTAB = '\v',
SPACE = ' '
};
enum BOOLEAN { FALSE = 0, TRUE } match_flag;
void main()
{
int index = 0;
int count_of_letter = 0;
int count_of_space = 0;
char str[] = "I'm Ely efod";
match_flag = FALSE;
for(; str[index] != '\0'; index++)
if( SPACE != str[index] )
count_of_letter++;
else
{
match_flag = (enum BOOLEAN) 1;
count_of_space++;
}
printf("%s %d times %c", match_flag ? "match" : "not match", count_of_space, NEWLINE);
printf("count of letters: %d %c%c", count_of_letter, NEWLINE, RETURN);
}
输出：
match 2 times
count of letters: 10
Press any key to continue
4. 枚举类型与 sizeof 运算符
#include <>
enum escapes
{
BELL = '\a',
BACKSPACE = '\b',
HTAB = '\t',
RETURN = '\r',
NEWLINE = '\n',
VTAB = '\v',
SPACE = ' '
};
enum BOOLEAN { FALSE = 0, TRUE } match_flag;
void main()
{
printf("%d bytes \n", sizeof(enum escapes)); //4 bytes
printf("%d bytes \n", sizeof(escapes)); //4 bytes
printf("%d bytes \n", sizeof(enum BOOLEAN)); //4 bytes
printf("%d bytes \n", sizeof(BOOLEAN)); //4 bytes
printf("%d bytes \n", sizeof(match_flag)); //4 bytes
printf("%d bytes \n", sizeof(SPACE)); //4 bytes
printf("%d bytes \n", sizeof(NEWLINE)); //4 bytes
printf("%d bytes \n", sizeof(FALSE)); //4 bytes
printf("%d bytes \n", sizeof(0)); //4 bytes
}
5. 综合举例
#include<>
enum Season
{
spring, summer=100, fall=96, winter
};
typedef enum
{
Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
}
Weekday;
void main()
{
/* Season */
printf("%d \n", spring); // 0
printf("%d, %c \n", summer, summer); // 100, d
printf("%d \n", fall+winter); // 193
Season mySeason=winter;
if(winter==mySeason)
printf("mySeason is winter \n"); // mySeason is winter
int x=100;
if(x==summer)
printf("x is equal to summer\n"); // x is equal to summer
printf("%d bytes\n", sizeof(spring)); // 4 bytes
/* Weekday */
printf("sizeof Weekday is: %d \n", sizeof(Weekday)); //sizeof Weekday is: 4
Weekday today = Saturday;
Weekday tomorrow;
if(today == Monday)
tomorrow = Tuesday;
else
tomorrow = (Weekday) (today + 1); //remember to convert from int to Weekday
}
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