{"id":30,"date":"2016-11-29T22:40:19","date_gmt":"2016-11-29T14:40:19","guid":{"rendered":"http:\/\/blog.fly-kite.com\/?p=30"},"modified":"2018-06-11T14:14:15","modified_gmt":"2018-06-11T06:14:15","slug":"%e5%ba%94%e8%af%a5%e8%ae%b0%e4%bd%8f%ef%bc%9a%e6%95%b0%e7%bb%84%e5%92%8c%e6%8c%87%e9%92%88%e6%98%af%e4%b8%8d%e5%90%8c%e7%9a%84%e4%ba%8b%e7%89%a9","status":"publish","type":"post","link":"https:\/\/flykite.me\/?p=30","title":{"rendered":"\u5e94\u8be5\u8bb0\u4f4f\uff1a\u6570\u7ec4\u548c\u6307\u9488\u662f\u4e0d\u540c\u7684\u4e8b\u7269"},"content":{"rendered":"

\u4e3a\u4ec0\u4e48\u4f1a\u5f15\u8d77\u6df7\u4e71\uff1f<\/h2>\n

\u9996\u5148\uff0c\u8bf7\u5141\u8bb8\u6211\u5f3a\u8c03\u4e00\u4e0b\u672c\u7ae0\u7684\u91cd\u8981\u89c2\u70b9\u3002
\n C\u8bed\u8a00\u7684\u6570\u7ec4\u548c\u6307\u9488\u662f\u5b8c\u5168\u4e0d\u540c\u7684\u3002<\/p>\n

\u5927\u5bb6\u90fd\u8bf4C\u8bed\u8a00\u7684\u6307\u9488\u6bd4\u8f83\u96be\uff0c\u53ef\u662f\u771f\u6b63\u5730\u8ba9\u521d\u5b66\u8005\u201c\u6320\u5899\u201d\u7684\uff0c\u5e76\u4e0d\u662f\u6307\u9488\u81ea\u8eab\u7684\u4f7f\u7528\uff0c\u800c\u662f\u201c\u6df7\u6dc6\u4e86\u6570\u7ec4\u548c\u6307\u9488\u201d\u3002\u6b64\u5916\uff0c\u5f88\u591a\u201c\u5751\u7239\u201d\u7684\u5165\u95e8\u4e66\u5bf9\u6307\u9488\u548c\u6570\u7ec4\u7684\u8bb2\u89e3\u4e5f\u662f\u6781\u5176\u6df7\u4e71\u3002<\/p>\n

\u6bd4\u5982\uff0cK&R\u4e2d\u5c31\u6709\u4e0b\u9762\u4e00\u6bb5\u6587\u5b57\uff08p.119\uff09
\nC\u8bed\u8a00\u7684\u6307\u9488\u548c\u6570\u7ec4\u4e4b\u95f4\u6709\u5f88\u5f3a\u7684\u5173\u8054\u5173\u7cfb\uff0c\u56e0\u6b64\u5fc5\u987b\u5c06\u6307\u9488\u548c\u6570\u7ec4\u653e\u5728\u4e00\u8d77\u8ba8\u8bba\u3002<\/p>\n

\u5f88\u591aC\u7a0b\u5e8f\u5458\u8ba4\u4e3a\u201c\u6570\u7ec4\u548c\u6307\u9488\u662f\u51e0\u4e4e\u76f8\u540c\u7684\u4e8b\u7269\u201d\uff0c\u8fd9\u79cd\u8ba4\u8bc6\u662f\u5f15\u8d77C\u7684\u6df7\u4e71\u7684\u4e3b\u8981\u539f\u56e0\u3002<\/p>\n

\u4ece\u56fe3-17\u4e2d\u53ef\u4ee5\u4e00\u76ee\u4e86\u7136\u5730\u770b\u51fa\uff0c\u6570\u7ec4\u662f\u4e00\u4e9b\u5bf9\u8c61\u6392\u5217\u540e\u5f62\u6210\u7684\uff0c\u6307\u9488\u5219\u8868\u793a\u6307\u5411\u67d0\u5904\u3002\u4ed6\u4eec\u662f\u5b8c\u5168\u4e0d\u540c\u7684\u3002 <\/p>\n

\"\u56fe3-18\u4f7f\u7528\u6307\u9488\u8bbf\u95ee\u6570\u7ec4\"<\/div><\/p>\n

\u5e26\u7740\u201c\u6570\u7ec4\u548c\u6307\u9488\u662f\u51e0\u4e4e\u76f8\u540c\u7684\u4e8b\u7269\u201d\u8fd9\u6837\u7684\u8bef\u89e3\uff0c\u521d\u5b66\u8005\u7ecf\u5e38\u5199\u51fa\u4e0b\u9762\u8fd9\u6837\u7684\u4ee3\u7801\uff1a<\/p>\n

int *p;
\np[3] = \u2026\u2026 \u2190\u7a81\u7136\u4f7f\u7528\u6ca1\u6709\u6307\u5411\u5185\u5b58\u533a\u57df\u7684\u6307\u9488
\n\u2014\u2014\u81ea\u52a8\u53d8\u91cf\u7684\u6307\u9488\u5728\u521d\u671f\u72b6\u6001\uff0c\u503c\u662f\u4e0d\u5b9a\u7684\u3002<\/p>\n

char str[10];
\n\u2026\u2026
\n\u2026\u2026
\n\u2026\u2026
\nstr = “abc”; \u2190\u7a81\u7136\u60f3\u6570\u7ec4\u8d4b\u503c
\n\u2014\u2014\u6570\u7ec4\u65e2\u4e0d\u662f\u6807\u91cf\uff0c\u4e5f\u4e0d\u662f\u7ed3\u6784\u4f53\uff0c\u4e0d\u80fd\u4e34\u65f6\u4f7f\u7528\u3002<\/p>\n

int p[]; \u2190\u4f7f\u7528\u7a7a\u7684[]\u58f0\u660e\u672c\u5730\u53d8\u91cf
\n\u2014\u2014\u53ea\u6709\u5728\u201c\u51fd\u6570\u7684\u5f62\u53c2\u7684\u58f0\u660e\u201d\u4e2d\uff0c\u6570\u7ec4\u7684\u58f0\u660e\u624d\u53ef\u4ee5\u88ab\u89e3\u8bfb\u6210\u6307\u9488\u3002 <\/p>\n

\u5bf9\u4e8e\u6570\u7ec4\u548c\u6307\u9488\uff0c\u4ed6\u4eec\u5728\u54ea\u4e9b\u5730\u65b9\u662f\u76f8\u4f3c\u7684\uff0c\u53c8\u5728\u90a3\u4e9b\u5730\u65b9\u662f\u4e0d\u540c\u7684\uff1f\u4e0d\u597d\u610f\u601d\uff0c\u53ef\u80fd\u5728\u4e0b\u9762\u4f1a\u51fa\u73b0\u548c\u524d\u9762\u91cd\u590d\u7684\u5185\u5bb9\u3002<\/p>\n

\u8868\u8fbe\u5f0f\u4e4b\u4e2d<\/h2>\n

\u5728\u8868\u8fbe\u5f0f\u4e2d\uff0c\u6570\u7ec4\u53ef\u4ee5\u88ab\u89e3\u8bfb\u6210\u6307\u5411\u5176\u521d\u59cb\u5143\u7d20\u7684\u6307\u9488\u3002\u6240\u4ee5\uff0c\u53ef\u4ee5\u5199\u6210\u4e0b\u9762\u8fd9\u6837\uff1a
\nint array[10];
\np = array; \u2190\u5c06\u6307\u5411array[0]\u7684\u6307\u9488\u8d4b\u4e88p<\/p>\n

\u53ef\u662f\uff0c\u53cd\u8fc7\u6765\u5199\u6210\u4e0b\u9762\u8fd9\u6837
\narray = p;
\n\u5c31\u662f\u4e0d\u53ef\u4ee5\u7684\u3002\u5374\u662f\uff0c\u5728\u8868\u8fbe\u5f0f\u4e2darray\u53ef\u4ee5\u88ab\u89e3\u8bfb\u6210\u6307\u9488\uff0c\u53ef\u662f\u672c\u8d28\u4e0a\u4ed6\u5176\u5b9e\u662f\u88ab\u89e3\u91ca\u6210\u4e86&array[0]\uff0c\u6b64\u65f6\u7684\u6307\u9488\u662f\u4e00\u4e2a\u53f3\u503c*\u3002\uff08\u6b64\u65f6\u7684\u6307\u9488\u662f\u53f3\u503c\u8fd9\u4e2a\u7406\u7531\u4e4b\u5916\uff0c\u5728\u6807\u51c6\u4e2d\uff0c\u6570\u7ec4\u4e5f\u4e0d\u662f\u201c\u53ef\u53d8\u66f4\u7684\u5de6\u503c\u201d\u3002\uff09<\/p>\n

\u6bd4\u5982\uff0c\u5bf9\u4e8eint\u7c7b\u578b\u7684\u53d8\u91cfa \uff0c a = 10;\u8fd9\u6837\u7684\u8d4b\u503c\u662f\u53ef\u4ee5\u7684\uff0c\u5355\u80af\u5b9a\u6ca1\u6709\u4eba\u60f3\u505aa + 1 = 10;\u8fd9\u6837\u7684\u8d4b\u503c\u5427\u3002\u5c3d\u7ba1a \u548c a + 1\u90fd\u662fint\uff0c\u4f46\u662fa + 1\u6ca1\u6709\u5bf9\u5e94\u7684\u5185\u5b58\u533a\u57df\uff0c\u53ea\u662f\u4e00\u4e2a\u53f3\u503c\uff0c\u6240\u4ee5\u4e0d\u80fd\u88ab\u8d4b\u503c\u3002\u540c\u6837\u7684\u9053\u7406\uff0carray\u4e5f\u4e0d\u80fd\u88ab\u8d4b\u503c\u3002\u6b64\u5916\uff0c\u5bf9\u4e8e\u4e0b\u9762\u8fd9\u4e2a\u6307\u9488\uff0c
\nint *p;
\n\u5982\u679cp\u6307\u5411\u4e86\u67d0\u4e2a\u6570\u7ec4\uff0c\u81ea\u7136\u53ef\u4ee5\u901a\u8fc7p[i]\u7684\u65b9\u5f0f\u8fdb\u884c\u8bbf\u95ee\uff0c \u5355\u7740\u5e76\u4e0d\u4ee3\u8868p\u5c31\u662f\u6307\u9488\u3002
\np[i]\u53ea\u4e0d\u8fc7\u662f*(p + i)\u7684\u8bed\u6cd5\u7cd6\uff0c\u53ea\u8981p\u6b63\u786e\u5730\u6307\u5411\u4e00\u4e2a\u6570\u7ec4\uff0c\u5c31\u53ef\u4ee5\u901a\u8fc7p[i]\u5bf9\u6570\u7ec4\u7684\u5185\u5bb9\u8fdb\u884c\u8bbf\u95ee\uff0c\u5982\u56fe3-18\u6240\u793a\u3002<\/p>\n

\"%e5%9b%be3-18%e4%bd%bf%e7%94%a8%e6%8c%87%e9%92%88%e8%ae%bf%e9%97%ae%e6%95%b0%e7%bb%84\"<\/div><\/p>\n

\u5982\u679c\u662f\u201c\u6307\u9488\u7684\u6570\u7ec4\u201d\u548c\u201c\u6570\u7ec4\u7684\u6570\u7ec4\u201d\uff0c\u5c31\u4f1a\u6709\u5f88\u5927\u7684\u4e0d\u540c\u3002
\nchar *color_name[] = {
\n “red”,
\n “green”,
\n “blue”,
\n};
\n\u5bf9\u4ee5\u4e0a\u7684\u4ee3\u7801\u8fdb\u884c\u56fe\u89e3\uff08\u53c2\u7167\u56fe3-19\uff09\uff0c<\/p>\n

\"%e5%9b%be3-19%e6%8c%87%e9%92%88%e7%9a%84%e6%95%b0%e7%bb%84\"<\/div><\/p>\n

char color_name[][6] = {
\n “red”,
\n “green”,
\n “blue”,
\n}
\n\u5bf9\u4ee5\u4e0a\u7684\u4ee3\u7801\u8fdb\u884c\u56fe\u89e3\uff08\u53c2\u7167\u56fe3-20\uff09\uff0c<\/p>\n

\"%e5%9b%be3-20%e6%95%b0%e7%bb%84%e7%9a%84%e6%95%b0%e7%bb%84\"<\/div><\/p>\n

\u4ee5\u4e0a\u4e24\u79cd\u60c5\u51b5\u90fd\u53ef\u4ee5\u7528color_name[i][j]\u7684\u65b9\u5f0f\u5bf9\u6570\u7ec4\u8fdb\u884c\u8bbf\u95ee\uff0c\u4f46\u662f\u5185\u5b58\u4e2d\u6570\u636e\u7684\u5e03\u5c40\u662f\u5b8c\u5168\u4e0d\u540c\u7684\u3002<\/p>\n

\u58f0\u660e
\n\u53ea\u6709\u5728\u58f0\u660e\u51fd\u6570\u7684\u5f62\u53c2\u7684\u65f6\u5019\uff0c\u6570\u7ec4\u7684\u58f0\u660e\u624d\u80fd\u89e3\u8bfb\u6210\u6307\u9488\u7684\u58f0\u660e\uff08\u53c2\u71673.5.1\u8282\uff09\u3002<\/p>\n

\u4ee5\u4e0a\u7684\u8bed\u6cd5\u7cd6\uff0c\u4e0e\u5176\u8bf4\u4f7fC\u53d8\u5f97\u66f4\u52a0\u5bb9\u6613\u7406\u89e3\uff0c\u5012\u4e0d\u5982\u8bf4\u5b83\u4f7fC\u8bed\u8a00\u7684\u8bed\u6cd5\u53d8\u5f97\u66f4\u52a0\u6df7\u4e71\u3002\u662f\u4e0d\u662f\u6709\u5f88\u591a\u4eba\u8fd9\u4e48\u60f3\uff1f\u6211\u5c31\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\uff08\u867d\u7136\u4f7f\u7528\u8fd9\u4e2a\u8bed\u6cd5\u7cd6\u53ef\u4ee5\u8ba9\u591a\u7ef4\u6570\u7ec4\u4f5c\u4e3a\u53c2\u6570\u88ab\u4f20\u9012\u65f6\u66f4\u5bb9\u6613\u7406\u89e3\u3002\uff09\u800c\u4e14 K&R\u7684\u8bf4\u660e\u66f4\u662f\u4f7f\u8fd9\u79cd\u6df7\u4e71\u5c40\u9762\u96ea\u4e0a\u52a0\u971c\u3002<\/p>\n

\u5728\u4e0d\u662f\u58f0\u660e\u51fd\u6570\u7684\u5f62\u53c2\u7684\u65f6\u5019\uff0c\u6570\u7ec4\u58f0\u660e\u548c\u6307\u9488\u7684\u58f0\u660e\u662f\u4e0d\u53ef\u80fd\u76f8\u7b49\u7684\u3002<\/p>\n

\u4f7f\u7528extern\u7684\u65f6\u5019\u662f\u6700\u5bb9\u6613\u51fa\u95ee\u9898\u7684\uff08\u53c2\u71673.5.2\u8282\uff09\u3002\u53e6\u5916\uff0c\u58f0\u660e\u5c40\u90e8\u53d8\u91cf\u6216\u8005\u7ed3\u6784\u4f53\u7684\u6210\u5458\u65f6\u5019\uff0c\u5199\u6210
\nint hoge[];
\n\u4f1a\u5f15\u8d77\u8bed\u6cd5\u9519\u8bef\uff08\u5bf9\u4e8e\u7ed3\u6784\u4f53\u7684\u6210\u5458\uff0c\u5728ISO C99\u4e2d\u662f\u5141\u8bb8\u8fd9\u79cd\u5199\u6cd5\u7684\uff09\u3002<\/p>\n

\u5b58\u5728\u6570\u7ec4\u521d\u59cb\u5316\u8868\u8fbe\u5f0f\u7684\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u7a7a\u7684[]\uff0c\u4f46\u8fd9\u662f\u56e0\u4e3a\u7f16\u8bd1\u5668\u80fd\u591f\u8ba1\u7b97\u51fa\u6570\u7ec4\u5143\u7d20\u7684\u4e2a\u6570\uff0c\u6240\u4ee5\u53ef\u4ee5\u7701\u7565\u4e66\u5199\u5143\u7d20\u7684\u4e2a\u6570\u3002\u4ec5\u6b64\u800c\u5df2\uff0c\u8fd9\u79cd\u7279\u5f81\u548c\u6570\u7ec4\u626f\u4e0d\u4e0a\u4efb\u4f55\u5173\u7cfb\u3002<\/p>\n

\u8981\u70b9
\n\u3010\u975e\u5e38\u91cd\u8981\uff01\uff01\u3011
\n\u6570\u7ec4\u548c\u6307\u9488\u662f\u4e0d\u540c\u7684\u4e8b\u7269\u3002<\/p>\n

\n

\u5185\u5bb9\u6458\u81ea\uff1a\u300a\u5f81\u670dC\u6307\u9488\u300b
\n

\"%e5%be%81%e6%9c%8dc%e6%8c%87%e9%92%88\"<\/div>
\n\/\/\u672c\u6587\u8f6c\u81eaSinaAppEngine\u5fae\u535a <\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e3a\u4ec0\u4e48\u4f1a\u5f15\u8d77\u6df7\u4e71\uff1f \u9996\u5148\uff0c\u8bf7\u5141\u8bb8\u6211\u5f3a\u8c03\u4e00\u4e0b\u672c\u7ae0\u7684\u91cd\u8981\u89c2\u70b9\u3002 C\u8bed\u8a00\u7684\u6570\u7ec4\u548c\u6307\u9488\u662f\u5b8c\u5168\u4e0d\u540c\u7684\u3002 \u5927\u5bb6\u90fd\u8bf4C\u8bed\u8a00\u7684 […]<\/p>\n","protected":false},"author":1,"featured_media":34,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/flykite.me\/index.php?rest_route=\/wp\/v2\/posts\/30"}],"collection":[{"href":"https:\/\/flykite.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/flykite.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/flykite.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/flykite.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=30"}],"version-history":[{"count":1,"href":"https:\/\/flykite.me\/index.php?rest_route=\/wp\/v2\/posts\/30\/revisions"}],"predecessor-version":[{"id":36,"href":"https:\/\/flykite.me\/index.php?rest_route=\/wp\/v2\/posts\/30\/revisions\/36"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/flykite.me\/index.php?rest_route=\/wp\/v2\/media\/34"}],"wp:attachment":[{"href":"https:\/\/flykite.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=30"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/flykite.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=30"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/flykite.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=30"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}