{"id":384,"date":"2020-04-05T21:39:42","date_gmt":"2020-04-05T13:39:42","guid":{"rendered":"https:\/\/www.notown.club\/?p=384"},"modified":"2020-04-05T22:49:38","modified_gmt":"2020-04-05T14:49:38","slug":"c-%e7%b1%bb%ef%bc%88%e7%ac%94%e8%ae%b0%e4%ba%8c%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.notown.top\/?p=384","title":{"rendered":"C++ \u7c7b\uff08\u7b14\u8bb0\u4e8c\uff09"},"content":{"rendered":"\n

\u4e00\u3001\u7c7b\u7684\u9759\u6001\u6210\u5458 <\/strong><\/p>\n\n\n\n

\u6709\u65f6\u5019\uff0c\u7c7b\u9700\u8981\u5b83\u7684\u4e00\u4e9b\u6210\u5458\u4e0e\u7c7b\u672c\u8eab\u76f4\u63a5\u76f8\u5173\uff0c\u800c\u4e0d\u662f\u4e0e\u7c7b\u7684\u5bf9\u8c61\u6ca1\u6709\u5173\u7cfb\u3002\u8fd9\u4e2a\u65f6\u5019\uff0c\u6211\u4eec\u5c31\u9700\u8981\u7c7b\u7684\u9759\u6001\u6210\u5458\u3002\u4f8b\u5b50\u5982\u4e0b\uff0c\u5b9a\u4e49\u4e00\u4e2a\u7c7b\uff0c\u7528\u5b83\u8868\u793a\u94f6\u884c\u7684\u8d26\u6237\u8bb0\u5f55\u3002<\/p>\n\n\n\n

class Account {
 public:
     void calculate() 
     {
         amount += amount * interestRate;
     }
     static double rate() 
     {
         return interestRate; 
     }
     static void rate(double);
private:
     string owner;
     double amount;
     static double interestRate;\/\/\u53ea\u662f\u4e00\u79cd\u58f0\u660e
     static double initRate();
 };<\/code><\/pre>\n\n\n\n
\u9759\u6001\u6210\u5458\u51fd\u6570\u4e0d\u4e0e\u4efb\u4f55\u5bf9\u8c61\u7ed1\u5b9a\u5728\u4e00\u8d77\uff0c\u5b83\u4eec\u4e0d\u5305\u542bthis\u6307\u9488\u3002\u4f5c\u4e3a\u7ed3\u679c\uff0c\u9759\u6001\u6210\u5458\u51fd\u6570\u4e0d\u80fd\u88ab\u58f0\u660e\u6210const\uff0c\u800c\u4e14\u4e5f\u4e0d\u80fd\u5728static\u51fd\u6570\u4f53\u5185\u4f7f\u7528this\u6307\u9488\u3002<\/p>\n\n\n\n
\u5b9a\u4e49\u9759\u6001\u6210\u5458\uff1a<\/strong><\/p>\n\n\n\n
\uff08\u5f53\u5728\u7c7b\u7684\u5916\u90e8\u5b9a\u4e49\u9759\u6001\u6210\u5458\u65f6\uff0c\u4e0d\u80fd\u91cd\u590dstatic\u5173\u952e\u5b57\uff0c\u8be5\u5173\u952e\u5b57\u53ea\u51fa\u73b0\u5728\u7c7b\u5185\u90e8\u7684\u58f0\u660e\u8bed\u53e5\uff09
 \u56e0\u4e3a\u9759\u6001\u6570\u636e\u6210\u5458\u4e0d\u5c5e\u4e8e\u7c7b\u7684\u4efb\u4f55\u4e00\u4e2a\u5bf9\u8c61\uff0c\u6240\u4ee5\u4ed6\u4eec\u5e76\u4e0d\u662f\u5728\u521b\u5efa\u7c7b\u7684\u5bf9\u8c61\u65f6\u88ab\u5b9a\u4e49\u7684\u3002\u8fd9\u610f\u5473\u7740\u4ed6\u4eec\u4e0d\u662f\u7531\u7c7b\u7684\u6784\u9020\u51fd\u6570\u521d\u59cb\u5316\u7684\u3002\u800c\u4e14\u4e00\u822c\u6765\u8bf4\uff0c\u6211\u4eec\u4e0d\u80fd\u5728\u7c7b\u7684\u5185\u90e8\u521d\u59cb\u5316\u9759\u6001\u6210\u5458\u3002\u76f8\u53cd\u7684\uff0c\u5fc5\u987b\u5728\u7c7b\u7684\u5916\u90e8\u5b9a\u4e49\u548c\u521d\u59cb\u5316\u6bcf\u4e2a\u9759\u6001\u6210\u5458\u3002<\/p>\n\n\n\n
double Account::interestRate=0.03\/\/\u5b9a\u4e49\u5e76\u521d\u59cb\u5316<\/code><\/p>\n\n\n\n
\u5b57\u9762\u503c\u5e38\u91cf\u7c7b\u578b\u7684\u9759\u6001\u6210\u5458\u624d\u80fd\u7c7b\u5185\u521d\u59cb\u5316<\/strong><\/p>\n\n\n\n
class Account {
 public:
    static double rate() 
     {
         return interestRate; 
     }
     static void rate(double);
private:
     string owner;
     double amount;
     static double interestRate;
     static constexpr int period = 30;\/\/period\u662f\u5e38\u91cf\u8868\u8fbe\u5f0f
     double daily_tbl[period];
 };<\/code><\/pre>\n\n\n\n
\u4f46\u662f\uff0c\u7740\u5e76\u4e0d\u610f\u5473\u7740\u5916\u90e8\u5c31\u4e0d\u7528\u5b9a\u4e49period\u4e86\uff0c\u5373\u4f7f\u4e00\u4e2a\u5e38\u91cf\u9759\u6001\u6570\u636e\u6210\u5458\u5728\u7c7b\u5185\u90e8\u88ab\u521d\u59cb\u5316\u4e86\uff0c\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u4e5f\u5e94\u8be5\u5728\u7c7b\u7684\u5916\u90e8\u5b9a\u4e49\u4e00\u4e0b\u8be5\u6210\u5458\u3002<\/p>\n\n\n\n
\u4e8c\u3001\u6790\u6784\u51fd\u6570<\/strong><\/p>\n\n\n\n
\u6790\u6784\u51fd\u6570\u6267\u884c\u4e0e\u6784\u9020\u51fd\u6570\u76f8\u53cd\u7684\u64cd\u4f5c\uff1a\u6784\u9020\u51fd\u6570\u521d\u59cb\u5316\u5bf9\u8c61\u7684\u975estatic\u6570\u636e\u6210\u5458\uff0c\u8fd8\u53ef\u80fd\u505a\u4e00\u4e9b\u5176\u5b83\u5de5\u4f5c\uff1b\u6790\u6784\u51fd\u6570\u91ca\u653e\u5bf9\u8c61\u4f7f\u7528\u7684\u8d44\u6e90\uff0c\u5e76\u9500\u6bc1\u5bf9\u8c61\u7684\u975estatic\u6570\u636e\u6210\u5458\u3002\u6790\u6784\u51fd\u6570\u662f\u7c7b\u7684\u4e00\u4e2a\u6210\u5458\u51fd\u6570\uff0c\u540d\u5b57\u7531\u6ce2\u6d6a\u53f7\u63a5\u7c7b\u540d\u6784\u6210\uff0c\u6ca1\u6709\u8fd4\u56de\u503c\uff0c\u4e0d\u63a5\u53d7\u53c2\u6570\u3002
\n\u5728\u4e00\u4e2a\u6790\u6784\u51fd\u6570\u4e2d\uff0c\u9996\u5148\u6267\u884c\u51fd\u6570\u4f53\uff0c\u7136\u540e\u9500\u6bc1\u6210\u5458\uff0c\u6210\u5458\u6309\u521d\u59cb\u5316\u987a\u5e8f\u7684\u9006\u5e8f\u9500\u6bc1\u3002\u5728\u5bf9\u8c61\u7684\u6700\u540e\u4e00\u6b21\u4f7f\u7528\u4e4b\u540e\uff0c\u6790\u6784\u51fd\u6570\u7684\u51fd\u6570\u4f53\u4f1a\u5148\u88ab\u6267\u884c\uff0c\u8fd9\u4e2a\u51fd\u6570\u4f53\u4e00\u822c\u662f\u5199\u4e86\u7c7b\u7684\u8bbe\u8ba1\u8005\u5e0c\u671b\u6267\u884c\u7684\u4efb\u4f55\u6536\u5c3e\u5de5\u4f5c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e00\u3001\u7c7b\u7684\u9759\u6001\u6210\u5458 \u6709\u65f6\u5019\uff0c\u7c7b\u9700\u8981\u5b83\u7684\u4e00\u4e9b\u6210\u5458\u4e0e\u7c7b\u672c\u8eab\u76f4\u63a5\u76f8\u5173\uff0c\u800c\u4e0d\u662f\u4e0e\u7c7b\u7684\u5bf9\u8c61\u6ca1\u6709\u5173\u7cfb\u3002\u8fd9\u4e2a\u65f6\u5019\uff0c\u6211\u4eec\u5c31\u9700\u8981\u7c7b…Continue reading C++    \u7c7b\uff08\u7b14\u8bb0\u4e8c\uff09<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[11],"tags":[],"class_list":["post-384","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"https:\/\/www.notown.top\/index.php?rest_route=\/wp\/v2\/posts\/384","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.notown.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.notown.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.notown.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.notown.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=384"}],"version-history":[{"count":5,"href":"https:\/\/www.notown.top\/index.php?rest_route=\/wp\/v2\/posts\/384\/revisions"}],"predecessor-version":[{"id":421,"href":"https:\/\/www.notown.top\/index.php?rest_route=\/wp\/v2\/posts\/384\/revisions\/421"}],"wp:attachment":[{"href":"https:\/\/www.notown.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=384"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.notown.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=384"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.notown.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=384"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}