=<\/code> \u53f3\u8fb9<\/p>\n<\/blockquote>\n\u5de6\u503c\uff1a\u62e5\u6709\u5730\u5740\u5c5e\u6027\u7684\u5bf9\u8c61\uff08\u6bd4\u5982\u4e00\u4e2a\u53d8\u91cf\uff0c\u6211\u4eec\u53ef\u4ee5\u5bf9\u5b83\u8d4b\u503c\uff0c\u4e5f\u5c31\u662f\u628a\u503c\u5b58\u50a8\u5230\u5b83\u7684\u5730\u5740\u5904\uff0c\u6240\u4ee5\u6709\u5730\u5740\u5c5e\u6027\uff09<\/p>\n
\u53f3\u503c\uff1a\u4e0d\u6ee1\u8db3\u5de6\u503c\u6761\u4ef6\u7684\u5bf9\u8c61\uff0c\u4e5f\u662f\u4e0d\u80fd\u653e\u5728\u7b49\u53f7\u5de6\u8fb9\u7684\u5bf9\u8c61\u3002\u4e34\u65f6\u5bf9\u8c61\u5c31\u662f\u53f3\u503c<\/p>\n
int i = 10; \/\/ \u53f3\u503c\nint i1 = i; \/\/ \u5de6\u503c\nint i2 = i + 1; \/\/ \u53f3\u503c\n++i; \/\/ \u5de6\u503c, \u56e0\u4e3ai\u5df2\u7ecf\u662f\u81ea\u589e\u540e\u7684\u503c, \u6240\u4ee5\u662f\u76f4\u63a5\u53d6i\u81ea\u8eab\u5730\u5740\ni++; \/\/ \u53f3\u503c, \u56e0\u4e3a\u53d6\u7684\u662fi\u81ea\u589e\u524d\u7684\u503c, \u5b9e\u9645\u4e0a\u662f\u4e34\u65f6\u5bf9\u8c61<\/code><\/pre>\n\u5f15\u7528\u7684\u5206\u7c7b<\/h4>\n\n\u63d0\u524d\u770b\u4e00\u773c\uff0c\u540e\u9762\u8fb9\u5b66\u8fb9\u6d89\u53ca<\/p>\n<\/blockquote>\n
\n- \n
\u666e\u901a\u5de6\u503c\u5f15\u7528\uff1a\u5c31\u662f\u4e00\u4e2a\u5bf9\u8c61\u7684\u522b\u540d\uff0c\u53ea\u80fd\u7ed1\u5b9a\u5de6\u503c\uff0c\u65e0\u6cd5\u7ed1\u5b9a\u5e38\u91cf\u5bf9\u8c61<\/p>\n
\uff08\u5982\u679c\u4e0d\u7ed1\u5b9a\u4e00\u4e2a\u786e\u5b9a\u7684\u53d8\u91cf\uff0c\u90a3\u4f9d\u7136\u4f1a\u6709\u6307\u9488\u7684\u5185\u5b58\u4e0d\u53ef\u63a7\u95ee\u9898\uff09<\/p>\n
int i = 10;\nint& ri = i;<\/code><\/pre>\n<\/li>\n- \n
const\u5de6\u503c\u5f15\u7528\uff1a\u53ef\u4ee5\u5bf9\u5e38\u91cf\u8d77\u522b\u540d\uff0c\u53ef\u4ee5\u7ed1\u5b9a\u5de6\u503c\u548c\u53f3\u503c<\/p>\n
\uff08\u8fd9\u91cc\u6ca1\u6709\u4e0d\u53ef\u63a7\u7684\u5371\u9669\u4e86\uff0c\u6240\u4ee5\u53ef\u4ee5\u5f53\u6210\u5e38\u53d8\u91cf\u540d\uff09<\/p>\n
const int& ri = 100;<\/code><\/pre>\n<\/li>\n- \n
\u53f3\u503c\u5f15\u7528\uff1a\u53ea\u80fd\u7ed1\u5b9a\u53f3\u503c\u7684\u5f15\u7528\uff08\u6d89\u53ca\u7684\u6982\u5ff5\u5df2\u7ecf\u8131\u79bb\u4e86\u4f20\u7edf\u6307\u9488\uff0c\u770b\u540e\u9762\u5185\u5bb9\uff09<\/p>\n
int i = 20;\nint&& rri = i++;<\/code><\/pre>\n<\/li>\n- \n
\u4e07\u80fd\u5f15\u7528\uff1a\u5f88\u91cd\u8981\uff0c\u4f46\u9700\u8981\u6a21\u677f\u7b49\u57fa\u7840\u7684\u6982\u5ff5\uff0c\u540e\u9762\u518d\u8bf4<\/p>\n<\/li>\n<\/ol>\n
move \u51fd\u6570<\/h4>\n\n- \u53f3\u503c\u770b\u91cd\u5bf9\u8c61\u7684\u503c\u800c\u4e0d\u8003\u8651\u5730\u5740\uff0cmove\u51fd\u6570\u53ef\u4ee5\u5bf9\u4e00\u4e2a\u5de6\u503c\u4f7f\u7528\uff0c\u4f7f\u64cd\u4f5c\u7cfb\u7edf\u4e0d\u518d\u5728\u610f\u5176\u5730\u5740\u5c5e\u6027\uff0c\u5c06\u5176\u5b8c\u5168\u89c6\u4f5c\u4e00\u4e2a\u53f3\u503c<\/li>\n<\/ol>\n
int i = 50;\nint&& rri = std::move(i);<\/code><\/pre>\n\n- \n
move\u51fd\u6570\u8ba9\u64cd\u4f5c\u7684\u5bf9\u8c61\u5931\u53bb\u4e86\u5730\u5740\u5c5e\u6027<\/p>\n
\u6240\u4ee5\u6211\u4eec\u6709\u4e49\u52a1\u4fdd\u8bc1\u4ee5\u540e\u4e0d\u518d\u4f7f\u7528\u8be5\u53d8\u91cf\u7684\u5730\u5740\u5c5e\u6027\uff0c\u7b80\u5355\u6765\u8bf4\u5c31\u662f\u4e0d\u518d\u4f7f\u7528\u8be5\u53d8\u91cf\uff0c\u56e0\u4e3a\u5de6\u503c\u5bf9\u8c61\u7684\u5730\u5740\u662f\u5176\u4f7f\u7528\u65f6\u65e0\u6cd5\u7ed5\u8fc7\u7684\u5c5e\u6027<\/strong><\/p>\n\n\u76f8\u5f53\u4e8e\u53d8\u91cf\u628a\u81ea\u5df1\u7684\u5730\u5740\u4ea4\u4e86\u51fa\u6765\uff0c\u4ec5\u5e26\u7740\u503c\u5bfb\u627e\u4e0b\u4e00\u4e2a\u843d\u811a\u70b9\uff0c\u81f3\u4e8e\u6709\u4ec0\u4e48\u610f\u4e49\uff0c\u540e\u9762\u4f1a\u8ba8\u8bba<\/p>\n<\/blockquote>\n<\/li>\n<\/ol>\n
\u4e34\u65f6\u5bf9\u8c61<\/h4>\n\n\u53f3\u503c\u5f15\u7528\u4e3b\u8981\u5904\u7406\u7684\u5c31\u662f\u4e34\u65f6\u5bf9\u8c61\u3002\u6240\u6709\u4e34\u65f6\u5bf9\u8c61\u90fd\u662f\u53f3\u503c\uff0c\u56e0\u4e3a\u4ea7\u751f\u540e\u5f88\u5feb\u5c31\u53ef\u80fd\u9500\u6bc1\uff0c\u4f7f\u7528\u7684\u662f\u5b83\u7684\u503c\u5c5e\u6027<\/p>\n<\/blockquote>\n
\u7a0b\u5e8f\u6267\u884c\u65f6\u751f\u6210\u7684\u4e2d\u95f4\u5bf9\u8c61\u5c31\u662f\u4e34\u65f6\u5bf9\u8c61\uff0c\u5982\u51fd\u6570\u8fd4\u56de\u503c\u3001\u8868\u8fbe\u5f0f\u7b49<\/p>\n
\u53ef\u8c03\u7528\u5bf9\u8c61<\/h4>\n\u51fd\u6570<\/h5>\n\n\u9664\u4e86\u4e00\u822c\u7684\u51fd\u6570\u5916\uff0cC++ \u63d0\u4f9b\u4e86\u901a\u8fc7\u6307\u9488\u8c03\u7528\u51fd\u6570\u7684\u529f\u80fd<\/p>\n
\u8fd4\u56de\u503c(*)(\u53c2\u6570)<\/code> \u5b9a\u4e49\u4e86\u67d0\u4e2a\u51fd\u6570\u6307\u9488\u7c7b\u578b<\/p>\n\u8fd4\u56de\u503c(*\u6307\u9488\u540d)(\u53c2\u6570)<\/code> \u58f0\u660e\u4e00\u4e2a\u8be5\u7c7b\u7684\u6307\u9488\u53d8\u91cf\uff0c\u6307\u9488\u540d\u5fc5\u987b\u5199\u5728\u4e2d\u95f4\uff0c\u4f5c\u4e3a\u5de6\u503c\u5f88\u8ff7\u60d1<\/p>\n\n- \u4f46 C++11 \u5f15\u5165\u4e86
using<\/code> \u8bed\u6cd5\u7cd6\u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898 \u2193\uff08using<\/code> \u662f typedef<\/code> \u7684\u4e0a\u4f4d\u66ff\u4ee3\uff09<\/li>\n<\/ul>\n<\/blockquote>\nusing pf = void(*)(int); \/\/ pf\u53ef\u4ee5\u5b8c\u5168\u66ff\u4ee3\u53f3\u8fb9\u7684\u7c7b\u578b\u6765\u58f0\u660e\u53d8\u91cf\n\nvoid t(int i){}\nint main(){\n int i = 50;\n pf ptrT = t; \/\/ \u6709\u4eba\u8bf4\u51fd\u6570\u540d\u672c\u8eab\u5c31\u662f\u6307\u9488\uff0c\u662f\u9519\u8bef\u7684\u3002\u8fd9\u91cc\u5176\u5b9e\u662f\u9690\u5f0f\u6267\u884c pf ptrT = &t\n ptrT(i);\n}<\/code><\/pre>\n\n\n- \u51b7\u77e5\u8bc6\uff1a\u5173\u4e8e
typedef<\/code> \u4e3a\u4f55\u88ab\u66ff\u4ee3\u7684\u95ee\u9898\uff0c\u7b80\u5355\u89e3\u91ca\u4e00\u4e0b\uff1a<\/li>\n<\/ul>\ntypedef \u539f\u540d \u65b0\u540d<\/code>\uff0c\u672c\u8be5\u5982\u6b64\uff0c\u4f46\u5b9e\u9645\u4e0a\u8be5\u8bed\u6cd5\u9075\u4ece\u7684\u662f\u58f0\u660e\u53d8\u91cf\u7684\u8bed\u6cd5\u3002\u4f55\u6765\u6b64\u8a00\uff1f<\/p>\n\u5047\u8bbe\u8981\u4e3a\u51fd\u6570\u6307\u9488 void(*)(int, int)<\/code> \u8d77\u522b\u540d func_t<\/code>\uff0c\u4ee3\u7801\u662f typedef void(*func_t)(int, int)<\/code><\/p>\n\u2014\u2014\u7ed9\u5927\u4f19\u6574\u6c89\u9ed8\u4e86<\/p>\n<\/blockquote>\n
\u4eff\u51fd\u6570<\/h5>\n
\u5bf9\u7c7b\u5b9e\u73b0 ( )<\/code> \u8fd0\u7b97\u7b26\uff0c( )<\/code> \u53c8\u79f0\u4e3a\u51fd\u6570\u8c03\u7528\u8fd0\u7b97\u7b26\uff0c\u53ef\u4ee5\u5305\u542b\u53c2\u6570\uff0c\u53c2\u6570\u5f62\u5f0f\u4e0e\u51fd\u6570\u76f8\u540c<\/p>\n\u5b9e\u73b0\u4e4b\u540e\uff0c\u53ef\u4ee5\u5bf9\u8be5\u7c7b\u5bf9\u8c61\u4f7f\u7528 (\u53c2\u6570)<\/code> \u8868\u73b0\u4e3a\u8c03\u7528\uff08\u4f46\u76ee\u524d\u8fd8\u4e0d\u77e5\u9053\u6709\u4ec0\u4e48\u7528\uff09<\/p>\nclass Test{\npublic:\n int operator()(int t){\n return t + 1;\n }\n};\n\nTest test;\ntest(1); \/\/ \u7ed3\u679c\u4e3a2\u7684\u53f3\u503c<\/code><\/pre>\n\n\n- \u51b7\u77e5\u8bc6\uff1a\u7c7b\u4e2d\u5b9a\u4e49\u4e86\u8fd0\u7b97\u7b26\uff0c\u53ef\u4ee5\u5728\u5bf9\u8c61\u540e\u76f4\u63a5\u4f7f\u7528\u8fd0\u7b97\u7b26\uff0c\u4f46\u4e5f\u80fd\u76f4\u63a5\u8c03\u7528\u8fd0\u7b97\u7b26\u51fd\u6570<\/li>\n<\/ul>\n
class Test{\npublic:\n int operator+(int t)\n {\n return t + 2;\n }\n};\nTest test;\n\/\/ \u4e0b\u9762\u4e24\u4e2a\u7b49\u4ef7\ncout << test + 2;\ncout << test.operator+(2);<\/code><\/pre>\n<\/blockquote>\nlambda \u8868\u8fbe\u5f0f<\/h5>\n
[\u6355\u83b7\u5217\u8868](\u53c2\u6570) -> \u8fd4\u56de\u503c {\u51fd\u6570\u4f53}<\/code><\/p>\n\u6355\u83b7<\/h6>\n\n\u7528\u6355\u83b7\u5217\u8868\u6307\u5b9a\u8be5 lambda \u8868\u8fbe\u5f0f\u53ef\u4ee5\u8bbf\u95ee\u7684\u524d\u6587\u53d8\u91cf\uff08\u56e0\u4e3a lambda \u5bf9\u8c61\u4e0d\u9075\u4ece\u4f20\u7edf\u7684\u4f5c\u7528\u8303\u56f4\uff0c\u8981\u624b\u52a8\u6307\u5b9a\uff09<\/p>\n<\/blockquote>\n
[]<\/code> \u4e0d\u6355\u83b7\u4efb\u4f55\u53d8\u91cf<\/p>\n[i]<\/code> \u6355\u83b7\u53d8\u91cf i<\/code>\uff08\u5728\u51fd\u6570\u4e2d\u4ec5\u53d6\u5176\u503c\uff09<\/p>\n[&i]<\/code> \u4ee5\u5f15\u7528\u6355\u83b7\u53d8\u91cf i<\/code>\uff08\u5728\u51fd\u6570\u4e2d\u4f7f\u7528 i \u7684\u5730\u5740\uff09<\/p>\n[=]<\/code> \u53d6\u503c\u6355\u83b7\u6240\u6709\u53d8\u91cf<\/p>\n[&]<\/code> \u53d6\u5f15\u7528\u6355\u83b7\u6240\u6709\u53d8\u91cf<\/p>\n\n\u53ef\u4ee5\u6df7\u7528\u6355\u83b7\uff0c\u4f8b\u5982\uff1a<\/p>\n
[=, &i]<\/code> \u8868\u793a\u53d8\u91cf i<\/code> \u7528\u5f15\u7528\u4f20\u9012\uff0c\u6b64\u5916\u6240\u6709\u53d8\u91cf\u7528\u503c\u4f20\u9012<\/p>\n[&, i]<\/code> \u8868\u793a\u53d8\u91cf i<\/code> \u7528\u503c\u4f20\u9012\uff0c\u6b64\u5916\u6240\u6709\u53d8\u91cf\u7528\u5f15\u7528\u4f20\u9012<\/p>\n<\/blockquote>\n\u53c2\u6570<\/h6>\n\n\u5f62\u5f0f\u4e0e\u51fd\u6570\u76f8\u540c<\/p>\n<\/blockquote>\n
\u8fd4\u56de\u503c<\/h6>\n\n\u53ef\u4ee5\u6b63\u5e38\u8bbe\u5b9a\u7c7b\u578b\uff0c\u6216\u6307\u5b9a\u4e3a auto<\/code>\uff08auto<\/code> \u4e5f\u53ef\u4ee5\u63a8\u65ad void<\/code>\uff09\uff0c\u6216\u76f4\u63a5\u7701\u7565\uff0c\u7f16\u8bd1\u5668\u4f9d\u7136\u4f1a\u81ea\u52a8\u5224\u65ad\u8fd4\u56de\u503c<\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"C++ \u57fa\u672c\u5185\u5bb9 C++ \u8fdb\u7a0b\u5185\u5b58\u7ed3\u6784 \u8fdb\u7a0b\u5373\u6267\u884c\u4e2d\u7684\u7a0b\u5e8f\uff0c\u5305\u542b \u4ee3\u7801\u533a\u4e0e\u5e38\u91cf\u533a \u6808\u533a \u5806\u533a \u9759\u6001\u53d8\u91cf\u533a \u4ee3\u7801 […]<\/p>\n","protected":false},"author":1,"featured_media":176,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-174","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/blog.minegician.cn\/index.php?rest_route=\/wp\/v2\/posts\/174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blog.minegician.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.minegician.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.minegician.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.minegician.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=174"}],"version-history":[{"count":3,"href":"http:\/\/blog.minegician.cn\/index.php?rest_route=\/wp\/v2\/posts\/174\/revisions"}],"predecessor-version":[{"id":227,"href":"http:\/\/blog.minegician.cn\/index.php?rest_route=\/wp\/v2\/posts\/174\/revisions\/227"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/blog.minegician.cn\/index.php?rest_route=\/wp\/v2\/media\/176"}],"wp:attachment":[{"href":"http:\/\/blog.minegician.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.minegician.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=174"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.minegician.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"image-20231008105447443\"](\"https:\/\/mgc-1311747586.cos.ap-shanghai.myqcloud.com\/notes\/image-20231008105447443.png\")
<\/div><\/p>\n![\"image-20231009031609673\"](\"https:\/\/mgc-1311747586.cos.ap-shanghai.myqcloud.com\/notes\/image-20231009031609673.png\")
<\/div><\/p>\n