{"id":74595,"date":"2024-02-27T12:02:15","date_gmt":"2024-02-27T04:02:15","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=74595"},"modified":"2024-02-27T12:02:40","modified_gmt":"2024-02-27T04:02:40","slug":"c%e8%af%ad%e8%a8%80%e4%b8%ad%e7%bb%93%e6%9e%84%e4%bd%93%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/74595.html","title":{"rendered":"C\u8bed\u8a00\u4e2d\u7ed3\u6784\u4f53\u5982\u4f55\u4f7f\u7528"},"content":{"rendered":"

\"C\u8bed\u8a00\u4e2d\u7ed3\u6784\u4f53\u5982\u4f55\u4f7f\u7528\"<\/p>\n

\u5728C\u8bed\u8a00\u4e2d\uff0c\u7ed3\u6784\u4f53<\/strong>\u662f\u7528\u4e8e\u5c06\u4e0d\u540c\u6216\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7ec4\u7ec7\u6210\u4e00\u4e2a\u610f\u4e49\u76f8\u5173\u7684\u6570\u636e\u96c6\u5408\u7684\u4e00\u79cd\u6570\u636e\u7ed3\u6784\u3002\u4f7f\u7528\u7ed3\u6784\u4f53\u53ef\u4ee5\u521b\u5efa\u590d\u5408\u6570\u636e\u7c7b\u578b\uff0c\u5b83\u5141\u8bb8\u60a8\u5c06\u6570\u636e\u9879\u6253\u5305\u6210\u5355\u4e00\u7684\u8bb0\u5f55\uff0c\u4f7f\u5f97\u6570\u636e\u7ba1\u7406\u66f4\u4e3a\u7cfb\u7edf\u5316\u548c\u9ad8\u6548\u3002\u7ed3\u6784\u4f53\u5e7f\u6cdb\u5e94\u7528\u4e8e\u8868\u793a\u5bf9\u8c61\u3001\u8bb0\u5f55\u7b49\u6982\u5ff5\u3002<\/p>\n

\u9488\u5bf9\u7ed3\u6784\u4f53\u7684\u4f7f\u7528\uff0c\u4e09\u4e2a\u65b9\u9762\u5c24\u4e3a\u91cd\u8981\uff1a\u5b9a\u4e49\u7ed3\u6784\u4f53\u7c7b\u578b<\/strong>\u3001\u521b\u5efa\u7ed3\u6784\u4f53\u53d8\u91cf<\/strong>\u548c\u8bbf\u95ee\u7ed3\u6784\u4f53\u6210\u5458<\/strong>\u3002\u5728\u5b9a\u4e49\u7ed3\u6784\u4f53\u7c7b\u578b\u65f6\uff0c\u9700\u8981\u4f7f\u7528`struct`\u5173\u952e\u5b57\u540e\u8ddf\u7ed3\u6784\u4f53\u7684\u540d\u79f0\u548c\u82b1\u62ec\u53f7\u5185\u90e8\u7f57\u5217\u7684\u6210\u5458\u5217\u8868\u3002\u6bcf\u4e2a\u6210\u5458\u53ef\u4ee5\u662f\u4efb\u610f\u7684\u6570\u636e\u7c7b\u578b\uff0c\u5305\u62ec\u57fa\u7840\u7c7b\u578b\u3001\u6570\u7ec4\u3001\u6307\u9488\u751a\u81f3\u662f\u5176\u4ed6\u7ed3\u6784\u4f53\u3002\u4e4b\u540e\uff0c\u4fbf\u53ef\u4ee5\u6839\u636e\u8fd9\u4e2a\u7c7b\u578b\u521b\u5efa\u53d8\u91cf\uff0c\u5e76\u901a\u8fc7`.`\uff08\u70b9\u64cd\u4f5c\u7b26\uff09\u5bf9\u5404\u6210\u5458\u8fdb\u884c\u8bbf\u95ee\u548c\u8d4b\u503c\u3002<\/p>\n

\u4e0b\u9762\u7684\u6b63\u6587\u90e8\u5206\u5c06\u6df1\u5165\u4ecb\u7ecd\u7ed3\u6784\u4f53\u5728C\u8bed\u8a00\u4e2d\u7684\u6240\u6709\u4f7f\u7528\u65b9\u5f0f\u3002<\/p>\n

\u4e00\u3001\u5b9a\u4e49\u7ed3\u6784\u4f53\u7c7b\u578b<\/strong><\/p>\n

\u7ed3\u6784\u4f53\u7684\u5b9a\u4e49\u662f\u521b\u5efa\u7ed3\u6784\u4f53\u4f7f\u7528\u7684\u7b2c\u4e00\u6b65\u3002\u8981\u5b9a\u4e49\u4e00\u4e2a\u7ed3\u6784\u4f53\u7c7b\u578b\uff0c\u9996\u5148\u9700\u8981\u4f7f\u7528\u5173\u952e\u5b57`struct`\uff0c\u540e\u8ddf\u7ed3\u6784\u4f53\u7684\u540d\u79f0\uff08\u4e5f\u79f0\u4e3a\u6807\u7b7e\uff09\u548c\u4e00\u5bf9\u82b1\u62ec\u53f7\u3002\u5728\u82b1\u62ec\u53f7\u4e2d\u5b9a\u4e49\u6bcf\u4e2a\u6210\u5458\u53ca\u5176\u6570\u636e\u7c7b\u578b\u3002\u6210\u5458\u53ef\u4ee5\u662f\u4efb\u610f\u6570\u636e\u7c7b\u578b\uff0c\u5982int\u3001float\u3001char\u6216\u5176\u4ed6\u7ed3\u6784\u4f53\u3002<\/p>\n

\u4f8b\u5b50\uff1a<\/p>\n

“`c<\/p>\n

struct Book {<\/p>\n

char title[50];<\/p>\n

char author[50];<\/p>\n

int pages;<\/p>\n

float price;<\/p>\n

};<\/p>\n

“`<\/p>\n

\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a`Book`\u7684\u7ed3\u6784\u4f53\uff0c\u5b83\u6709\u56db\u4e2a\u6210\u5458\uff1a\u6807\u9898\u3001\u4f5c\u8005\u540d\u5b57\u3001\u9875\u6570\u548c\u4ef7\u683c\u3002<\/p>\n

\u4e8c\u3001\u521b\u5efa\u7ed3\u6784\u4f53\u53d8\u91cf<\/strong><\/p>\n

\u4e00\u65e6\u5b9a\u4e49\u4e86\u7ed3\u6784\u4f53\u7c7b\u578b\uff0c\u63a5\u4e0b\u6765\u5c31\u53ef\u4ee5\u6839\u636e\u5b83\u6765\u521b\u5efa\u53d8\u91cf\u3002\u7ed3\u6784\u4f53\u53d8\u91cf\u53ef\u4ee5\u8ddf\u666e\u901a\u53d8\u91cf\u4e00\u6837\u58f0\u660e\uff0c\u53ea\u662f\u7c7b\u578b\u662f\u81ea\u5b9a\u4e49\u7684\u7ed3\u6784\u4f53\u7c7b\u578b\uff0c\u5e76\u4e14\u53ef\u4ee5\u5728\u58f0\u660e\u65f6\u521d\u59cb\u5316\u7ed3\u6784\u4f53\u6210\u5458\u3002<\/p>\n

\u4f8b\u5b50\uff1a<\/p>\n

“`c<\/p>\n

struct Book myBook = {“C Programming Language”, “Dennis Ritchie”, 279, 44.95};<\/p>\n

“`<\/p>\n

\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a`myBook`\u7684\u7ed3\u6784\u4f53\u53d8\u91cf\uff0c\u5e76\u5728\u521b\u5efa\u65f6\u521d\u59cb\u5316\u4e86\u6240\u6709\u7684\u6210\u5458\u3002<\/p>\n

\u4e09\u3001\u8bbf\u95ee\u7ed3\u6784\u4f53\u6210\u5458<\/strong><\/p>\n

\u521b\u5efa\u7ed3\u6784\u4f53\u53d8\u91cf\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528\u70b9\u64cd\u4f5c\u7b26\uff08`.`\uff09\u8bbf\u95ee\u7ed3\u6784\u4f53\u4e2d\u7684\u5404\u4e2a\u6210\u5458\u3002<\/p>\n

\u4f8b\u5b50\uff1a<\/p>\n

“`c<\/p>\n

printf(“Book Title: %s\\n”, myBook.title);<\/p>\n

printf(“Book Author: %s\\n”, myBook.author);<\/p>\n

printf(“Book Pages: %d\\n”, myBook.pages);<\/p>\n

printf(“Book Price: $f\\n”, myBook.price);<\/p>\n

“`<\/p>\n

\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u4f60\u53ef\u4ee5\u8bfb\u53d6\u6216\u4fee\u6539\u7ed3\u6784\u4f53\u7684\u6210\u5458\u6570\u636e\u3002<\/p>\n

\u56db\u3001\u7ed3\u6784\u4f53\u6307\u9488\u548c\u52a8\u6001\u5206\u914d<\/strong><\/p>\n

C\u8bed\u8a00\u5141\u8bb8\u4f7f\u7528\u6307\u9488\u6765\u5f15\u7528\u7ed3\u6784\u4f53\u53d8\u91cf\u3002\u8981\u901a\u8fc7\u6307\u9488\u6765\u8bbf\u95ee\u7ed3\u6784\u4f53\u7684\u6210\u5458\uff0c\u4f60\u9700\u8981\u4f7f\u7528\u7bad\u5934\u64cd\u4f5c\u7b26\uff08`->`\uff09\u3002\u7ed3\u6784\u4f53\u6307\u9488\u901a\u5e38\u4e0e\u52a8\u6001\u5185\u5b58\u5206\u914d\u7ed3\u5408\u4f7f\u7528\uff0c\u7528\u4e8e\u5728\u8fd0\u884c\u65f6\u521b\u5efa\u7ed3\u6784\u4f53\u6570\u7ec4\u548c\u590d\u6742\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5982\u94fe\u8868\u3002<\/p>\n

\u4f8b\u5b50\uff1a<\/p>\n

“`c<\/p>\n

struct Book *ptr;<\/p>\n

ptr = &myBook;<\/p>\n

printf(“Book Title: %s\\n”, ptr->title);<\/p>\n

“`<\/p>\n

\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7\u6307\u9488`ptr`\u6765\u8bbf\u95ee`myBook`\u7684\u6210\u5458\u3002<\/p>\n

\u7ed3\u6784\u4f53\u5728C\u8bed\u8a00\u4e2d\u7684\u4f7f\u7528\u975e\u5e38\u7075\u6d3b\uff0c\u4e5f\u662f\u4e00\u79cd\u91cd\u8981\u7684\u7f16\u7a0b\u6982\u5ff5\u3002\u638c\u63e1\u7ed3\u6784\u4f53\u6709\u52a9\u4e8e\u5728\u7a0b\u5e8f\u4e2d\u521b\u5efa\u66f4\u52a0\u590d\u6742\u800c\u6709\u5e8f\u7684\u6570\u636e\u7ed3\u6784\uff0c\u8fdb\u800c\u53ef\u4ee5\u66f4\u597d\u5730\u7ba1\u7406\u548c\u7ec4\u7ec7\u5927\u91cf\u76f8\u5173\u6570\u636e\u3002<\/p>\n

\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n

\u5982\u4f55\u5728C\u8bed\u8a00\u4e2d\u5b9a\u4e49\u7ed3\u6784\u4f53\uff1f<\/strong>
\n\u5728C\u8bed\u8a00\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u5173\u952e\u5b57`struct`\u6765\u5b9a\u4e49\u7ed3\u6784\u4f53\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u8868\u793a\u5b66\u751f\u7684\u7ed3\u6784\u4f53\uff0c\u5305\u542b\u59d3\u540d\u3001\u5e74\u9f84\u548c\u6210\u7ee9\u7b49\u4fe1\u606f\u3002\u5b9a\u4e49\u7ed3\u6784\u4f53\u65f6\uff0c\u9700\u8981\u6307\u5b9a\u6bcf\u4e2a\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\u3002<\/p>\n

\u5982\u4f55\u58f0\u660eC\u8bed\u8a00\u4e2d\u7684\u7ed3\u6784\u4f53\u53d8\u91cf\uff1f<\/strong>
\n\u8981\u58f0\u660e\u7ed3\u6784\u4f53\u53d8\u91cf\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u5b9a\u4e49\u597d\u7684\u7ed3\u6784\u4f53\u7c7b\u578b\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6211\u4eec\u5df2\u7ecf\u5b9a\u4e49\u4e86\u8868\u793a\u5b66\u751f\u7684\u7ed3\u6784\u4f53\uff0c\u53ef\u4ee5\u901a\u8fc7`struct Student stu1;`\u6765\u58f0\u660e\u4e00\u4e2a\u540d\u4e3a`stu1`\u7684\u5b66\u751f\u7ed3\u6784\u4f53\u53d8\u91cf\uff0c\u5e76\u4f7f\u7528`stu1.name`\u3001`stu1.age`\u7b49\u6210\u5458\u6765\u8bbf\u95ee\u5176\u5c5e\u6027\u3002<\/p>\n

\u5728C\u8bed\u8a00\u4e2d\u5982\u4f55\u521d\u59cb\u5316\u7ed3\u6784\u4f53\u53d8\u91cf\uff1f<\/strong>
\n\u7ed3\u6784\u4f53\u53d8\u91cf\u53ef\u4ee5\u901a\u8fc7\u8d4b\u503c\u7684\u65b9\u5f0f\u8fdb\u884c\u521d\u59cb\u5316\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u6210\u5458\u8bbf\u95ee\u8fd0\u7b97\u7b26`.`\u7ed9\u7ed3\u6784\u4f53\u53d8\u91cf\u7684\u6bcf\u4e2a\u6210\u5458\u8d4b\u503c\uff0c\u4e5f\u53ef\u4ee5\u5728\u58f0\u660e\u65f6\u76f4\u63a5\u521d\u59cb\u5316\u3002\u53e6\u5916\uff0c\u53ef\u4ee5\u901a\u8fc7`memset`\u51fd\u6570\u5bf9\u7ed3\u6784\u4f53\u53d8\u91cf\u8fdb\u884c\u521d\u59cb\u5316\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728C\u8bed\u8a00\u4e2d\uff0c\u7ed3\u6784\u4f53\u662f\u7528\u4e8e\u5c06\u4e0d\u540c\u6216\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7ec4\u7ec7\u6210\u4e00\u4e2a\u610f\u4e49\u76f8\u5173\u7684\u6570\u636e\u96c6\u5408\u7684\u4e00\u79cd\u6570\u636e\u7ed3\u6784\u3002\u4f7f\u7528\u7ed3\u6784\u4f53\u53ef\u4ee5\u521b\u5efa\u590d\u5408 […]","protected":false},"author":1,"featured_media":74598,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/74595"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=74595"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/74595\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/74598"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=74595"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=74595"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=74595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}