{"id":338,"date":"2015-02-06T13:58:03","date_gmt":"2015-02-06T05:58:03","guid":{"rendered":"http:\/\/yangwang.hk\/?p=338"},"modified":"2015-02-06T13:58:03","modified_gmt":"2015-02-06T05:58:03","slug":"2-8%e3%80%81%e4%b8%80%e4%ba%9b%e4%b9%b1%e4%b8%83%e5%85%ab%e7%b3%9f%e7%9a%84%e8%a1%a5%e5%85%85","status":"publish","type":"post","link":"https:\/\/yangwang.hk\/?p=338","title":{"rendered":"2.8\u3001\u4e00\u4e9b\u4e71\u4e03\u516b\u7cdf\u7684\u8865\u5145"},"content":{"rendered":"

\u4ee3\u7801\u662f\u63cf\u8ff0\u7f16\u7a0b\u6700\u597d\u7684\u8bed\u8a00\uff0c\u8ba9\u6211\u4eec\u4ece\u4e00\u6bb5\u4ee3\u7801\u5f00\u59cb\uff01<\/p>\n

\r\n#include <stdio.h>\r\n#include <math.h>\r\n\r\n\/***************************************\r\n*\u8f93\u5165\u4e09\u89d2\u5f62\u7684\u4e09\u6761\u8fb9\uff0c\u8f93\u51fa\u4e09\u89d2\u5f62\u7684\u9762\u79ef*\r\n*\u5176\u4e2d\u7528\u5230\u4e86\u6d77\u4f26\u516c\u5f0f                   *\r\n*\u4e09\u89d2\u5f62\u7684\u9762\u79efs=\u221ap(p-a)(p-b)(p-c)      *\r\n*\u5176\u4e2dp\u4e3a\u4e09\u89d2\u5f62\u5468\u957f\u7684\u4e00\u534a              *\r\n*abc\u4e3a\u4e09\u6761\u8fb9\u7684\u957f\u5ea6                    *\r\n***************************************\/\r\nint main()\r\n{\r\n    double a, b, c;     \/\/\u4e09\u89d2\u5f62\u7684\u4e09\u6761\u8fb9\u7684\u957f\u5ea6\r\n    double p;           \/\/\u4e09\u89d2\u5f62\u5468\u957f\u7684\u4e00\u534a\r\n    double area;        \/\/\u4e09\u89d2\u5f62\u7684\u9762\u79ef\r\n\r\n    printf("\u8bf7\u8f93\u5165\u4e09\u89d2\u5f62\u7684\u4e09\u4e2a\u8fb9\u957f\uff0c\u4e00\u6b21\u8f93\u5165\u4e00\u4e2a\uff0c\u6216\u7528\u7a7a\u683c\u9694\u5f00\\n");\r\n    scanf("%lf %lf %lf", &a, &b, &c);\r\n    p = (a + b + c) \/ 2;        \/\/\u8ba1\u7b97\u5468\u957f\u7684\u4e00\u534a\r\n    area = sqrt(p * (p - a) * (p - b) * (p - c));   \/\/\u8ba1\u7b97\u9762\u79ef\r\n    printf("%.3f\\n", area);\r\n    return 0;\r\n}\r\n\r\n<\/pre>\n
\u7a0b\u5e8f\u7684\u6ce8\u91ca\u91cc\u5199\u7684\u5f88\u6e05\u695a\uff0c\u8fd9\u4e2a\u7a0b\u5e8f\u53ef\u4ee5\u7528\u6765\u8ba1\u7b97\u4e09\u89d2\u5f62\u7684\u9762\u79ef<\/p>\n
\u548c\u6211\u4eec\u4e4b\u524d\u5b66\u4e60\u7684\u7a0b\u5e8f\u4e0d\u540c\u7684\u662f\uff0c\u4ee3\u7801\u7b2c\u4e8c\u884c\u591a\u4e86\u4e2a#include <math.h><\/strong><\/em><\/p>\n
math.h\u5c31\u662f\u6570\u5b66\u5e93\u5566\uff0c\u5e38\u7528\u7684\u6570\u5b66\u51fd\u6570\u90fd\u5728\u91cc\u9762\uff0c\u56e0\u4e3a\u7a0b\u5e8f\u4e2d\u7528\u5230\u4e86\u8ba1\u7b97\u5e73\u65b9\u6839\u7684\u51fd\u6570sqrt()<\/strong><\/em>,\u6240\u4ee5\u6211\u4eec\u9700\u8981\u201c\u5305\u542b\u201d\u8fd9\u4e2a\u6587\u4ef6\u3002\u6570\u5b66\u51fd\u6570\u5c06\u5728\u7a0d\u540e\u8fdb\u884c\u8be6\u7ec6\u4ecb\u7ecd<\/p>\n
\u7b2c13-15\u884c\u5b9a\u4e49\u4e86\u4e00\u4e9b\u53d8\u91cf\uff0c\u53d8\u91cf\u7684\u7528\u9014\u90fd\u5728\u6ce8\u91ca\u4e2d\u7ed9\u51fa\u4e86\u3002<\/p>\n
17\u884c\u7684printf \u544a\u8bc9\u4e86\u7528\u6237\u5982\u4f55\u8f93\u5165\u6570\u636e\u3002<\/p>\n
18\u884c\u7684scanf\u4e2d\uff0c\u591a\u4e2a\u5360\u4f4d\u7b26\u4e4b\u95f4\u4f7f\u7528\u7a7a\u683c\u9694\u5f00\uff0c\u8fd9\u6837\u505a\u7684\u597d\u5904\u662f\u7528\u6237\u53ef\u4ee5\u9009\u62e9\u4f7f\u7528\u7a7a\u683c\u9694\u5f00\u591a\u4e2a\u6570\u636e\u4e00\u6b21\u8f93\u5165\uff0c\u6216\u8005\u5206\u4e09\u6b21\uff0c\u6bcf\u6b21\u8f93\u5165\u4e00\u4e2a\u6570\u636e\u3002<\/p>\n
\u7b2c19\u884c\u5c31\u4e0d\u7528\u8bf4\u4e86\uff08\u5982\u679c\u4f60\u770b\u4e0d\u660e\u767d\u7684\u8bdd\uff0c\u8bf7\u9000\u56de\u5230\u7b2c\u4e8c\u7ae0\u7b2c\u4e00\u8282\u91cd\u65b0\u5b66\u4e60\u76f8\u5173\u5185\u5bb9\uff09<\/p>\n
20\u884c\u4e2d\u51fa\u73b0\u4e86\u4e00\u4e2a\u65b0\u7684\u51fd\u6570sqrt()\uff0c\u524d\u9762\u4ecb\u7ecd\u5230\u5b83\u662f\u4e00\u4e2a\u8ba1\u7b97\u5e73\u65b9\u6839\u7684\u51fd\u6570<\/p>\n
\u8981\u5f00\u65b9\u7684\u6570\u4f5c\u4e3a\u53c2\u6570\uff0c\u6267\u884c\u540e\u5b83\u5c06\u8fd4\u56de\u5e73\u65b9\u6839\u3002\u8fd9\u91cc\u4e5f\u5c31\u662f\u6211\u4eec\u7684\u9762\u79ef\u5566\uff01<\/p>\n
\u4e0b\u9762\u7684printf\u5c06\u5b83\u663e\u793a\u4e86\u51fa\u6765\u3002%f\u7684\u5f62\u5f0f\u6211\u60f3\u5927\u5bb6\u5df2\u7ecf\u6bd4\u8f83\u719f\u6089\u4e86\uff0c\u6240\u4ee5\u8fd9\u91cc\u6545\u610f\u4f7f\u7528\u4e86%.3f\u8fd9\u79cd\u5199\u6cd5\u3002<\/p>\n
\u4e2d\u95f4\u5c0f\u6570\u70b9\u540e\u7684\u6570\u5b57\u6307\u5b9a\u4e86\u6570\u636e\u663e\u793a\u7684\u957f\u5ea6\u3002.3\u5c31\u4ee3\u8868\u663e\u793a\u5c0f\u6570\u70b9\u540e\u4e09\u4f4d\uff08\u56db\u820d\u4e94\u5165\uff09\uff0c\u540c\u7406.2\u5c31\u662f\u663e\u793a\u5c0f\u6570\u70b9\u540e2\u4f4d\u3002\u5982\u679c\u76f4\u63a5\u4f7f\u7528%f\u7684\u8bdd\uff0c\u4f1a\u8f93\u51fa\u9ed8\u8ba4\u7684\u4f4d\u6570\uff086\u4f4d\uff09<\/p>\n
\u5b9e\u9645\u4e0a\u8fd9\u4e2a\u7a0b\u5e8f\u4e2d\u8fd8\u6709BUG\uff08\u6f0f\u6d1e\uff09\uff0c\u60f3\u60f3\u662f\u4ec0\u4e48\uff1f<\/p>\n
\u6ca1\u6709\u60f3\u51fa\u6765\uff1f\u6ca1\u5173\u7cfb\uff0c\u6211\u4eec\u8fd0\u884c\u7a0b\u5e8f\u6765\u6d4b\u8bd5\u4e00\u4e0b\uff0c\u6211\u4eec\u8f93\u5165\u8fd9\u6837\u51e0\u4e2a\u6570\uff1a<\/p>\n
1 5 10<\/p>\n
\u56de\u8f66\u540e\u663e\u793a\u4ec0\u4e48\uff1f<\/p>\n
\u5bf9\uff0c\u6211\u4eec\u7a0b\u5e8f\u4e2d\u6ca1\u6709\u5bf9\u8f93\u5165\u6570\u636e\u7684\u6709\u6548\u6027\u8fdb\u884c\u5224\u65ad\uff0c\u7a0b\u5e8f\u53ea\u662f\u4e00\u80a1\u8111\u7684\u5c06\u7528\u6237\u8f93\u5165\u7684\u6570\u636e\u62ff\u6765\uff0c\u8fdb\u884c\u8ba1\u7b97\u7136\u540e\u8f93\u51fa\u3002\u6839\u672c\u6ca1\u6709\u8003\u8651\u5230\u7528\u6237\u8f93\u5165\u7684\u6570\u636e\u662f\u5426\u6709\u6548\uff0c\u80fd\u5426\u6784\u6210\u4e00\u4e2a\u4e09\u89d2\u5f62\u3002<\/p>\n
\u8981\u5224\u65ad\u7528\u6237\u7684\u8f93\u5165\u662f\u5426\u6709\u6548\uff0c\u5c31\u9700\u8981\u4f7f\u7528\u5230\u201c\u5206\u652f\u8bed\u53e5\u201d\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u56e0\u6b64\u6211\u4eec\u5c06\u5728\u540e\u9762\u5bf9\u8fd9\u4e2a\u7a0b\u5e8f\u8fdb\u884c\u6539\u8fdb\uff01<\/p>\n
\n
\u5982\u679c\u4f60\u5b8c\u6210\u4e86\u4e0a\u4e00\u8282\u6700\u540e\u5e03\u7f6e\u7684\u5c0f\u7a0b\u5e8f\u7684\u8bdd\uff0c\u5c31\u5230\u4e86\u516c\u5e03\u7b54\u6848\u7684\u65f6\u5019\u4e86<\/p>\n
\u8981\u6c42\u662f\u8f93\u5165\u4e24\u4e2a\u6d6e\u70b9\u6570\u5e76\u8f93\u51fa\u4ed6\u4eec\u7684\u548c\uff0c\u4ee3\u7801\u5982\u4e0b<\/p>\n
\r\n#include <stdio.h>\r\n\r\nint main(void)\r\n{\r\n    double a, b;\r\n    scanf("%lf %lf", &a, &b);\r\n    printf("%f", a + b);\r\n    return 0;\r\n}\r\n\r\n<\/pre>\n
\u5c31\u662f\u8fd9\u6837\uff0c\u6216\u8bb8\u4f60\u4f7f\u7528\u7684\u662ffloat\uff0c\u4e5f\u6216\u8bb8\u4f60\u5c06scanf\u62c6\u5f00\u4e3a\u4e24\u4e2a\u5199<\/p>\n
\u8fd9\u4e9b\u90fd\u662f\u6b63\u786e\u7684\u7b54\u6848\uff0c\u9700\u8981\u6ce8\u610f\u7684\u662fscanf\u540e\u9762\u7684\u53d8\u91cf\u540d\u524d\u9700\u8981\u52a0\u4e0a\u53d6\u5740\u7b26&<\/p>\n
\u65b0\u624b\u8fd8\u4f1a\u7ecf\u5e38\u6f0f\u6389\u5206\u53f7\uff0c\u8fd9\u6ca1\u6709\u4ec0\u4e48\uff0c\u6211\u5728\u521a\u521a\u5b66\u7684\u65f6\u5019\u4e5f\u4f1a\u6f0f\u6389\u5206\u53f7\uff0c\u5927\u5bb6\u90fd\u4f1a\u8fd9\u6837\u3002\u5199\u591a\u4e86\u540e\u4f60\u5e94\u8be5\u4f1a\u517b\u6210\u4e60\u60ef\u3001\u201c\u81ea\u52a8\u201d\u7684\u52a0\u4e0a\u5206\u53f7<\/p>\n
\u6700\u540e\u9700\u8981\u8bf4\u4e00\u4e0b\u7684\u662f\uff0c\u5173\u4e8e\u4f7f\u7528double\u8fd8\u662ffloat\u7684\u95ee\u9898\uff0c\u6709\u4e9b\u4eba\u4f1a\u5f88\u7ea0\u7ed3\uff0c\u5230\u5e95\u662f\u7528double\u8fd8\u662ffloat\uff0c\u8fd9\u6ca1\u6709\u4ec0\u4e48\u597d\u7ea0\u7ed3\u7684\uff0c\u7528double\u5c31\u884c\u4e86\u3002<\/p>\n
    \n
  1. double\u6bd4float\u7cbe\u5ea6\u66f4\u9ad8\uff0c\u5373\u5f97\u5230\u7684\u6570\u636e\u66f4\u51c6\u786e<\/li>\n
  2. \u5c3d\u7ba1double\u5360\u7528\u7684\u7a7a\u95f4\u662ffloat\u7684\u4e00\u500d\uff0c\u4f46\u662f\u548c\u73b0\u5728\u52a8\u8f84\u51e0G\u7684\u5185\u5b58\u76f8\u6bd4\uff0c\u7b80\u76f4\u5c31\u662f\u4e5d\u725b\u4e00\u6bdb\uff0c\u8981\u77e5\u9053c\u8bed\u8a00\u5df2\u7ecf\u6709\u51e0\u5341\u5e74\u7684\u5386\u53f2\u4e86\uff0c\u5728\u5f00\u53d1\u4e4b\u521d\u786c\u4ef6\u8d44\u6e90\u662f\u6bd4\u8f83\u7d27\u5f20\u7684\uff0c\u6240\u4ee5\u624d\u6709\u4e86double\u548cfloat\u4e4b\u5206\u3002\u4f46\u662f\u79d1\u6280\u5728\u8fdb\u6b65\uff0c\u6211\u4eec\u7528\u4e0d\u7740\u6316\u7a7a\u5fc3\u601d\u7684\u53bb\u60f3\u5982\u4f55\u7701\u90a3\u4e48\u51e0B\u7684\u5185\u5b58\u4e86<\/li>\n
  3. double\u6bd4float\u66f4\u5feb<\/li>\n<\/ol>\n
    \u6709\u7684\u4eba\u53ef\u80fd\u4e0d\u540c\u610f\u7b2c\u4e09\u70b9\uff08\u6211\u4e4b\u524d\u4e5f\u4e0d\u540c\u610f\uff09\uff0c\u56e0\u4e3adouble\u662f8\u5b57\u8282\uff0c\u7406\u8bba\u4e0a\u5e94\u8be5\u6bd44\u5b57\u8282\u7684float\u6162<\/p>\n
    \u4f46\u662f\u4e8b\u5b9e\u4e0e\u6b64\u76f8\u53cd\uff0c\u6211\u7684\u4e00\u4f4d\u7f51\u53cb\u4f7f\u7528double\u548cfloat\u8fdb\u884c\u51e0\u4e07\u6b21\u76f8\u540c\u7684\u8fd0\u7b97\uff0c\u7edf\u8ba1\u65f6\u95f4\u540e\u53d1\u73b0\uff0cdouble\u548cfloat\u5dee\u6bd4\u5e76\u4e0d\u5927\uff0c\u800c\u4e14double\u4f3c\u4e4e\u8fd8\u6bd4float\u5feb\u4e00\u4e9b\uff01<\/p>\n
    \u6240\u4ee5\u8bfb\u8005\u4eec\uff0c\u5927\u80c6\u7684\u4f7f\u7528double\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u4ee3\u7801\u662f\u63cf\u8ff0\u7f16\u7a0b\u6700\u597d\u7684\u8bed\u8a00\uff0c\u8ba9\u6211\u4eec\u4ece\u4e00\u6bb5\u4ee3\u7801\u5f00\u59cb\uff01 #include <stdio.h> #incl\u2026 Read More: 2.8\u3001\u4e00\u4e9b\u4e71\u4e03\u516b\u7cdf\u2026 »<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-338","post","type-post","status-publish","format-standard","hentry","category-c"],"views":2582,"_links":{"self":[{"href":"https:\/\/yangwang.hk\/index.php?rest_route=\/wp\/v2\/posts\/338","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yangwang.hk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yangwang.hk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yangwang.hk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yangwang.hk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=338"}],"version-history":[{"count":1,"href":"https:\/\/yangwang.hk\/index.php?rest_route=\/wp\/v2\/posts\/338\/revisions"}],"predecessor-version":[{"id":339,"href":"https:\/\/yangwang.hk\/index.php?rest_route=\/wp\/v2\/posts\/338\/revisions\/339"}],"wp:attachment":[{"href":"https:\/\/yangwang.hk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=338"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yangwang.hk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=338"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yangwang.hk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=338"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}