{"id":4248,"date":"2020-04-09T18:43:33","date_gmt":"2020-04-09T10:43:33","guid":{"rendered":"https:\/\/damogame.cn\/wordpress\/?p=4248"},"modified":"2020-04-09T18:43:33","modified_gmt":"2020-04-09T10:43:33","slug":"c-%e5%bc%80%e5%8f%91%e4%b8%ad%e5%88%a9%e7%94%a8yaml-cpp%e8%af%bb%e5%86%99yaml%e9%85%8d%e7%bd%ae%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/4248","title":{"rendered":"c++ \u5f00\u53d1\u4e2d\u5229\u7528yaml-cpp\u8bfb\u5199yaml\u914d\u7f6e\u6587\u4ef6"},"content":{"rendered":"
\n

\u539f\u6587\u5730\u5740<\/a><\/p>\n

 <\/p>\n

\n
<\/div>\n<\/div>\n<\/div>\n
\n
\n
\n

\u7248\u6743\u58f0\u660e\uff1a\u672c\u6587\u4e3a\u535a\u4e3b\u539f\u521b\u6587\u7ae0\uff0c\u672a\u7ecf\u535a\u4e3b\u5141\u8bb8\u4e0d\u5f97\u8f6c\u8f7d\u3002 https:\/\/blog.csdn.net\/briblue\/article\/details\/89515470<\/p>\n

\u5728\u7a0b\u5e8f\u5458\u7684\u5f00\u53d1\u751f\u6daf\u4e2d\uff0c\u8bfb\u5199\u914d\u7f6e\u6587\u4ef6\u5fc5\u4e0d\u53ef\u5c11\u3002<\/p>\n

\u914d\u7f6e\u6587\u4ef6\u6709\u5229\u4e8e\u6211\u4eec\u7075\u6d3b\u914d\u7f6e\u5de5\u7a0b\uff0c\u89e3\u51b3\u5927\u91cf\u91cd\u590d\u52b3\u52a8\uff0c\u4e5f\u65b9\u4fbf\u8c03\u8bd5\u3002<\/p>\n

\u914d\u7f6e\u6587\u4ef6\u7684\u683c\u5f0f\u6709\u5f88\u591a\uff0c\u6700\u7b80\u5355\u7684\u6709\u4e00\u884c\u4e00\u884c\u7684\u6587\u672c\uff0c\u4e5f\u6709\u50cf json\u3001xml\u3001protocol buffer \u8fd9\u6837\u7ed3\u6784\u5316\u7684\u683c\u5f0f\uff0c\u5f53\u7136\u4e5f\u6709 yaml \u8fd9\u79cd\u683c\u5f0f\u3002<\/p>\n

\u4eca\u5929\u7684\u535a\u6587\u4ecb\u7ecd\u7684\u662f\u5982\u4f55\u5728 C++ \u5f00\u53d1\u4e2d\u5229\u7528 yaml-cpp \u5f00\u6e90\u5e93\u8bfb\u5199 yaml \u914d\u7f6e\u6587\u4ef6\u3002<\/p>\n

\u5982\u679c\u6709 Python \u5f00\u53d1\u7ecf\u9a8c\u7684\u540c\u5b66\uff0c\u53ef\u80fd\u77e5\u9053\u7528 Python \u8bfb\u53d6 yaml \u662f\u518d\u7b80\u5355\u4e0d\u8fc7\u4e86\uff0c\u4f46\u662f C++ \u9ebb\u70e6\u4e00\u70b9\uff0c\u5b83\u9700\u8981\u4f60\u81ea\u5df1\u4e0b\u8f7d\u6e90\u7801\u7136\u540e\u7f16\u8bd1\u751f\u6210\u5e93\u6587\u4ef6\u3002<\/p>\n

yaml-cpp<\/h3>\n

yaml-cpp \u662f\u4e00\u4e2a\u5f00\u6e90\u5e93\uff0c\u5730\u5740\u5728 github \u4e0a\uff0chttps:\/\/github.com\/jbeder\/yaml-cpp<\/a><\/p>\n

yaml-cpp \u662f\u901a\u8fc7 CMake \u6765\u8fdb\u884c\u6784\u5efa\u548c\u7f16\u8bd1\u7684\u3002<\/p>\n

\u5728\u8fd9\u91cc\u5047\u8bbe\u8bfb\u8005\u90fd\u6709 CMake \u76f8\u5173\u7684\u7ecf\u9a8c\uff0c\u6ca1\u6709\u7684\u540c\u5b66\u81ea\u884c\u767e\u5ea6\u3002\u6211\u7684\u535a\u6587\u4e5f\u5199\u8fc7\u6bd4\u8f83\u7b80\u5355\u7684\u51e0\u7bc7\uff0c\u6709\u5174\u8da3\u7684\u53ef\u4ee5\u53bb\u770b\u4e00\u770b\u3002<\/p>\n

\u9996\u5148\u4e0b\u8f7d\u6e90\u7801\u3002<\/p>\n

\u7136\u540e\uff0c\u5728\u6e90\u7801\u76ee\u5f55\u521b\u5efa\u4e00\u4e2a build \u6587\u4ef6\u5939\u3002<\/p>\n

mkdir build<\/pre>\n
\u8fdb\u5165\u5230 build \u6587\u4ef6\u5939\uff0c\u7136\u540e\u6267\u884c cmake \u547d\u4ee4\u3002<\/p>\n
cd build\r\n\r\ncmake .<\/span>.<\/span><\/pre>\n
\u6ce8\u610f\u7684\u662f cmake \u540e\u9762\u662f ..<\/code>\uff0c\u8fd9\u4ee3\u8868\u4ece build \u4e0a\u4e00\u5c42\u76ee\u5f55\u67e5\u627e CMakeLists.txt \uff0c\u7136\u540e\u7f16\u8bd1\u7684\u6587\u4ef6\u90fd\u4f1a\u5b58\u653e\u5728 build \u6587\u4ef6\u5939\uff0c\u5982\u679c\u5bf9\u7f16\u8bd1\u7684\u6548\u679c\u4e0d\u6ee1\u610f\uff0c\u53ea\u8981\u5220\u9664 build \u6587\u4ef6\u5c31\u597d\u4e86\uff0c\u5176\u4ed6\u6e90\u7801\u76ee\u5f55\u5e76\u4e0d\u53d7\u5f71\u54cd\uff0c\u8fd9\u662f cmake \u7f16\u8bd1\u65f6\u7684\u57fa\u672c\u5957\u8def\u3002<\/p>\n
yaml-cpp \u9ed8\u8ba4\u6784\u5efa\u7684\u5c31\u662f\u9759\u6001\u5e93\uff0c\u4e5f\u5c31\u662f unix \u7c7b\u7cfb\u7edf\u4e0b\u7684 .a \u6587\u4ef6\uff0c\u5982\u679c\u4f60\u60f3\u6784\u5efa\u52a8\u6001\u5e93\u7684\u8bdd\uff0c\u5c31\u9700\u8981\u5728 cmake \u65f6\u6307\u5b9a\u3002<\/p>\n
cmake .<\/span>.<\/span>  -<\/span>D BUILD_SHARED_LIBS=<\/span>ON<\/pre>\n
\u7f16\u8bd1\u6210\u529f\u540e\uff0c\u4f1a\u751f\u6210\u5e93\u6587\u4ef6\uff0c\u4f60\u53ea\u9700\u8981\u5c06\u5e93\u6587\u4ef6\u548c\u5934\u6587\u4ef6\u62f7\u8d1d\u5230\u4f60\u81ea\u5df1\u7684\u5de5\u7a0b\u5f53\u4e2d\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u4e86\u3002<\/p>\n
\u9700\u8981\u5904\u7406\u597d\u5934\u6587\u4ef6\u3002<\/strong><\/p>\n
\u4f60\u5982\u679c\u4e0d\u60f3\u6bcf\u6b21\u90fd\u5230 copy \u5934\u6587\u4ef6\u5230\u4e0d\u540c\u7684\u5de5\u7a0b\u4e2d\uff0c\u90a3\u4e48\u4f60\u53ef\u4ee5\u5c06\u5934\u6587\u4ef6 copy \u5230\u7cfb\u7edf\u9ed8\u8ba4\u7684\u5934\u6587\u4ef6\u76ee\u5f55\uff0c\u6bd4\u5982 ubuntu \u7684\u5730\u5740\u662f \/usr\/local\/include<\/code>\uff0c\u5c06\u5e93\u6587\u4ef6\u62f7\u8d1d\u5230\u7cfb\u7edf\u9ed8\u8ba4\u7684 lib \u6587\u4ef6\u5c31\u597d\u4e86,\u6bd4\u5982 ubuntu \u662f \/usr\/local\/lib<\/code>\u3002<\/p>\n
\u6709\u4e86\u5934\u6587\u4ef6\u548c\u5e93\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u987a\u5229\u5199\u4ee3\u7801\u4e86\u3002<\/p>\n
\u8bfb\u53d6 yaml \u914d\u7f6e\u6587\u4ef6<\/h3>\n
\u5047\u8bbe\u6211\u4eec\u6709\u8fd9\u6837\u4e00\u4e2a\u914d\u7f6e\u6587\u4ef6<\/p>\n
config.yaml<\/p>\n
name:<\/span> frank\r\nsex:<\/span> male\r\nage:<\/span> 18<\/span>\r\n\r\nskills:<\/span> \r\n  c++<\/span>:<\/span> 1<\/span>\r\n  java:<\/span> 1<\/span>\r\n  android:<\/span> 1<\/span>\r\n  python:<\/span> 1<\/span><\/pre>\n
\u6e29\u99a8\u63d0\u793a\uff1ayaml \u4e2d\u7684\u5185\u5bb9\uff0c\uff1a\u540e\u9762\u4e00\u5b9a\u8981\u52a0\u7a7a\u683c\u54e6<\/strong> \u73b0\u5728\uff0c\u6211\u4eec\u7684\u76ee\u6807\u662f\u8981\u628a\u5b83\u6b63\u786e\u7684\u8bfb\u53d6\u51fa\u6765\u3002<\/p>\n
yaml_test.cpp<\/p>\n
#include <<\/span>iostream><\/span>\r\n#include \"include\/yaml-cpp\/yaml.h\"<\/span>\r\n\r\nusing namespace std;<\/span>\r\n\r\nint main<\/span>(<\/span>int argc,<\/span>char**<\/span> argv)<\/span>\r\n{<\/span>\r\n    YAML:<\/span>:<\/span>Node config =<\/span> YAML:<\/span>:<\/span>LoadFile<\/span>(<\/span>\"..\/config.yaml\"<\/span>)<\/span>;<\/span>\r\n\r\n    cout <<<\/span> \"name:\"<\/span> <<<\/span> config[<\/span>\"name\"<\/span>]<\/span>.<\/span>as<\/span><<\/span>string><\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n    cout <<<\/span> \"sex:\"<\/span> <<<\/span> config[<\/span>\"sex\"<\/span>]<\/span>.<\/span>as<\/span><<\/span>string><\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n    cout <<<\/span> \"age:\"<\/span> <<<\/span> config[<\/span>\"age\"<\/span>]<\/span>.<\/span>as<\/span><<\/span>int><\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n    return<\/span> 0<\/span>;<\/span>\r\n}<\/span><\/pre>\n
\u5934\u6587\u4ef6\u5728 include \u76ee\u5f55\u3002<\/p>\n
libs \u5b58\u653e .so \u6587\u4ef6\u3002<\/p>\n
\u7136\u540e\u901a\u8fc7 cmake \u7f16\u8bd1\uff0c\u56e0\u4e3a\u6211\u4e60\u60ef\u7528 cmake\uff0c\u5982\u679c\u8bfb\u8005\u559c\u6b22\u7528\u539f\u59cb\u7684 g++ \u7f16\u8bd1\u6216\u8005 makefile \u4e5f\u662f\u53ef\u4ee5\u7684\u3002<\/p>\n
\u6211\u7684 CMakeFileLists.txt \u5982\u4e0b\uff1a<\/p>\n
cmake_minimum_required<\/span>(<\/span>VERSION 3.2<\/span>)<\/span>\r\n\r\nproject<\/span>(<\/span>yaml_test)<\/span>\r\n\r\nadd_definitions<\/span>(<\/span>-<\/span>std=<\/span>c++<\/span>11<\/span>)<\/span>\r\n\r\n\r\ninclude_directories<\/span>(<\/span>include)<\/span>\r\nset<\/span>(<\/span>SRCS yaml_test.<\/span>cpp)<\/span>\r\nadd_executable<\/span>(<\/span>yamltest ${<\/span>SRCS}<\/span>)<\/span>\r\n\r\ntarget_link_libraries<\/span>(<\/span>yamltest ${<\/span>CMAKE_HOME_DIRECTORY}<\/span>\/<\/span>libs\/<\/span>libyaml-<\/span>cpp.<\/span>so)<\/span><\/pre>\n
\u5728\u5f53\u524d\u76ee\u5f55\u521b\u5efa build \u6587\u4ef6\u5939\uff0c\u7136\u540e\u8fdb\u5165 build \u6587\u4ef6\u6267\u884c cmake \u64cd\u4f5c\u3002<\/p>\n
mkdir build\r\n\r\ncd build\r\n\r\ncmake .<\/span>.<\/span><\/pre>\n
\u6700\u7ec8\u751f\u6210\u4e86\u540d\u4e3a yamltest \u7684\u53ef\u6267\u884c\u6587\u4ef6\u3002<\/p>\n
\u6267\u884c\u540e\uff0c\u8f93\u51fa\u7684\u4fe1\u606f\u5982\u4e0b\u3002<\/p>\n
name:<\/span>frank\r\nsex:<\/span>male\r\nage:<\/span>18<\/span><\/pre>\n
\u53ef\u4ee5\u770b\u5230\uff0c\u4fe1\u606f\u90fd\u88ab\u6b63\u5e38\u7684\u8bfb\u53d6\u51fa\u6765\u4e86\u3002<\/p>\n
Node<\/h3>\n
Node \u662f yaml-cpp \u4e2d\u7684\u6838\u5fc3\u6982\u5ff5\uff0c\u5b83\u7528\u4e8e\u5b58\u50a8\u89e3\u6790\u540e\u7684 yaml \u4fe1\u606f\u3002<\/p>\n
\u751f\u6210 Node \u7684\u5f62\u5f0f\u6709\u5f88\u591a\u79cd\uff0c loadFile() \u662f\u6700\u5e38\u89c1\u7684\u4e00\u79cd\u3002<\/p>\n
Node LoadFile<\/span>(<\/span>const<\/span> std:<\/span>:<\/span>string&<\/span> filename)<\/span><\/pre>\n
filename \u5c31\u662f\u914d\u7f6e\u6587\u4ef6\u7684\u8def\u5f84\u3002<\/p>\n
\u6709\u4e86 Node \u4e4b\u540e\uff0c\u6240\u6709\u7684\u4fe1\u606f\u90fd\u53ef\u4ee5\u68c0\u7d22\u5230\u3002<\/p>\n
\u6bd4\u5982 name.<\/p>\n
cout <<<\/span> \"name:\"<\/span> <<<\/span> config[<\/span>\"name\"<\/span>]<\/span>.<\/span>as<\/span><<\/span>string><\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span><\/pre>\n
as<string>()<\/code>\u8868\u793a\u5c06\u89e3\u6790\u7684\u5185\u5bb9\u8f6c\u6362\u6210 string \u7c7b\u578b\u3002 \u4f60\u4e5f\u53ef\u4ee5\u8f6c\u6362\u6210\u5176\u5b83\u7c7b\u578b\u3002<\/p>\n
\u5b83\u662f\u4e00\u4e2a\u6a21\u677f\u65b9\u6cd5\u3002<\/p>\n
\u6709\u540c\u5b66\u53ef\u80fd\u4f1a\u6709\u7591\u60d1\u3002<\/p>\n
skills:<\/span>  \r\n  c++<\/span>:<\/span> 1<\/span>\r\n  java:<\/span> 1<\/span>\r\n  android:<\/span> 1<\/span>\r\n  python:<\/span> 1<\/span><\/pre>\n
skills \u7684\u4fe1\u606f\u600e\u4e48\u8bfb\u5462\uff1f<\/p>\n
\u5176\u5b9e\u4e5f\u975e\u5e38\u7b80\u5355\u3002<\/p>\n
cout <<<\/span> \"skills c++:\"<\/span> <<<\/span> config[<\/span>\"skills\"<\/span>]<\/span>[<\/span>\"c++\"<\/span>]<\/span>.<\/span>as<\/span><<\/span>int><\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\ncout <<<\/span> \"skills java:\"<\/span> <<<\/span> config[<\/span>\"skills\"<\/span>]<\/span>[<\/span>\"java\"<\/span>]<\/span>.<\/span>as<\/span><<\/span>int><\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\ncout <<<\/span> \"skills android:\"<\/span> <<<\/span> config[<\/span>\"skills\"<\/span>]<\/span>[<\/span>\"android\"<\/span>]<\/span>.<\/span>as<\/span><<\/span>int><\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\ncout <<<\/span> \"skills python:\"<\/span> <<<\/span> config[<\/span>\"skills\"<\/span>]<\/span>[<\/span>\"python\"<\/span>]<\/span>.<\/span>as<\/span><<\/span>int><\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span><\/pre>\n
yaml-cpp \u4e2d\u7684\u8fed\u4ee3<\/h4>\n
yaml-cpp \u4e2d\u4e5f\u53ef\u4ee5\u901a\u8fc7\u8fed\u4ee3\u7684\u65b9\u5f0f\uff0c\u8bbf\u95ee Node \u4e2d\u7684\u5185\u5bb9\u3002<\/p>\n
\u6bd4\u5982\uff0c\u8bbf\u95ee skills \u4e0b\u9762\u7684\u5404\u4e2a\u5143\u7d20\u3002<\/p>\n
for<\/span>(<\/span>YAML:<\/span>:<\/span>const_iterator it=<\/span> config[<\/span>\"skills\"<\/span>]<\/span>.<\/span>begin<\/span>(<\/span>)<\/span>;<\/span> it !=<\/span> config[<\/span>\"skills\"<\/span>]<\/span>.<\/span>end<\/span>(<\/span>)<\/span>;<\/span>++<\/span>it)<\/span>\r\n{<\/span>\r\n    cout <<<\/span> it-<\/span>><\/span>first.<\/span>as<\/span><<\/span>string><\/span>(<\/span>)<\/span> <<<\/span> \":\"<\/span> <<<\/span> it-<\/span>><\/span>second.<\/span>as<\/span><<\/span>int><\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n}<\/span><\/pre>\n
\u7528 begin() \u83b7\u53d6\u8fed\u4ee3\u5668\uff0c\u7528 end() \u5224\u65ad\u8fed\u4ee3\u5668\u662f\u5426\u7ed3\u675f\u3002<\/p>\n
NodeType<\/h3>\n
yaml \u652f\u6301 Scalar\u3001List\u3001Map \u7c7b\u578b\uff0cyaml-cpp \u901a\u8fc7 NodeType \u5b9a\u4e49\u4e86 Node \u7684\u53ef\u80fd\u7c7b\u578b\u3002<\/p>\n
namespace YAML {<\/span>\r\nstruct NodeType {<\/span>\r\n  enum<\/span> value {<\/span> Undefined,<\/span> Null,<\/span> Scalar,<\/span> Sequence,<\/span> Map }<\/span>;<\/span>\r\n}<\/span>;<\/span>\r\n}<\/span><\/pre>\n
\u5bf9\u5e94\u672a\u5b9a\u4e49\u3001\u7a7a\u3001\u6807\u91cf\u3001\u5e8f\u5217\u3001\u5b57\u5178\u3002<\/p>\n
YAML:<\/span>:<\/span>Node test1 =<\/span> YAML:<\/span>:<\/span>Load<\/span>(<\/span>\"[1,2,3,4]\"<\/span>)<\/span>;<\/span>\r\ncout <<<\/span> \" Type: \"<\/span> <<<\/span> test1.<\/span>Type<\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n\r\nYAML:<\/span>:<\/span>Node test2 =<\/span> YAML:<\/span>:<\/span>Load<\/span>(<\/span>\"1\"<\/span>)<\/span>;<\/span>\r\ncout <<<\/span> \" Type: \"<\/span> <<<\/span> test2.<\/span>Type<\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n\r\nYAML:<\/span>:<\/span>Node test3 =<\/span> YAML:<\/span>:<\/span>Load<\/span>(<\/span>\"{'id':1,'degree':'senior'}\"<\/span>)<\/span>;<\/span>\r\ncout <<<\/span> \" Type: \"<\/span> <<<\/span> test3.<\/span>Type<\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span><\/pre>\n
\u4e0a\u9762\u7684\u4ee3\u7801\u662f\u4e3a\u4e86\u5224\u65ad NodeType\u3002<\/p>\n
\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n
 Type:<\/span> 3<\/span>\r\n Type:<\/span> 2<\/span>\r\n Type:<\/span> 4<\/span><\/pre>\n
\u5206\u522b\u5bf9\u5e94 Sequence\u3001Scalar\u3001Map\u3002<\/p>\n
yaml-cpp \u5199\u914d\u7f6e\u6587\u4ef6<\/h3>\n
\u65e5\u5e38\u5f00\u53d1\u4e2d\uff0c\u9664\u4e86\u8bfb\u53d6\u914d\u7f6e\u53c2\u6570\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u4fdd\u5b58\u53c2\u6570\uff0cyaml-cpp \u81ea\u7136\u4e5f\u63d0\u4f9b\u4e86\u76f8\u5e94\u7684\u529f\u80fd\u3002<\/p>\n
ofstream fout<\/span>(<\/span>\"testconfig.xml\"<\/span>)<\/span>;<\/span>\r\n\r\nconfig[<\/span>\"score\"<\/span>]<\/span> =<\/span> 99<\/span>;<\/span>\r\n\r\nfout <<<\/span> config;<\/span>\r\n\r\nfout.<\/span>close<\/span>(<\/span>)<\/span>;<\/span><\/pre>\n
\u524d\u9762\u4ee3\u7801\u89e3\u6790\u6210\u529f\u7684 config\uff0c\u73b0\u5728\u6dfb\u52a0\u4e00\u4e2a score,\u7136\u540e\u4fdd\u5b58\u3002<\/p>\n
\u8fd0\u884c\u4ee3\u7801\u540e\uff0c\u53d1\u73b0 build \u6587\u4ef6\u5939\u4e0b\u6b63\u786e\u4fdd\u5b58\u4e86 testconfig.xml \u6587\u4ef6\uff0cscore \u88ab\u6b63\u786e\u6dfb\u52a0\u8fdb\u53bb\u4e86\u3002<\/p>\n
name:<\/span> frank\r\nsex:<\/span> male\r\nage:<\/span> 18<\/span>\r\nskills:<\/span>\r\n  c++<\/span>:<\/span> 1<\/span>\r\n  java:<\/span> 1<\/span>\r\n  android:<\/span> 1<\/span>\r\n  python:<\/span> 1<\/span>\r\nscore:<\/span> 99<\/span><\/pre>\n
\u5230\u6b64\uff0cyaml-cpp \u7684\u7b80\u5355\u4f7f\u7528\u5c31 OK \u4e86\uff0c\u8bfb\u8005\u53ef\u4ee5\u67e5\u770b\u4ee3\u7801\u53bb\u6df1\u5165\u5b66\u4e60\u3002<\/p>\n
\u672c\u7bc7\u6587\u7ae0\u793a\u4f8b\u4ee3\u7801\uff0c\u76ee\u5f55\u7ed3\u6784\u5982\u4e0b\u56fe\uff1a<\/p>\n
\n
<\/div>\n<\/figure>\n
\u5b8c\u6574\u4ee3\u7801\uff1a yaml_test.cpp<\/p>\n
#include <<\/span>iostream><\/span>\r\n#include \"include\/yaml-cpp\/yaml.h\"<\/span>\r\n#include <<\/span>fstream><\/span>\r\n\r\nusing namespace std;<\/span>\r\n\r\nint main<\/span>(<\/span>int argc,<\/span>char**<\/span> argv)<\/span>\r\n{<\/span>\r\n    YAML:<\/span>:<\/span>Node config =<\/span> YAML:<\/span>:<\/span>LoadFile<\/span>(<\/span>\"..\/config.yaml\"<\/span>)<\/span>;<\/span>\r\n\r\n    cout <<<\/span> \"Node type \"<\/span> <<<\/span> config.<\/span>Type<\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n    cout <<<\/span> \"skills type \"<\/span> <<<\/span> config[<\/span>\"skills\"<\/span>]<\/span>.<\/span>Type<\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n\r\n    cout <<<\/span> \"name:\"<\/span> <<<\/span> config[<\/span>\"name\"<\/span>]<\/span>.<\/span>as<\/span><<\/span>string><\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n    cout <<<\/span> \"sex:\"<\/span> <<<\/span> config[<\/span>\"sex\"<\/span>]<\/span>.<\/span>as<\/span><<\/span>string><\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n    cout <<<\/span> \"age:\"<\/span> <<<\/span> config[<\/span>\"age\"<\/span>]<\/span>.<\/span>as<\/span><<\/span>int><\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n\r\n    cout <<<\/span> \"skills c++:\"<\/span> <<<\/span> config[<\/span>\"skills\"<\/span>]<\/span>[<\/span>\"c++\"<\/span>]<\/span>.<\/span>as<\/span><<\/span>int><\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n    cout <<<\/span> \"skills java:\"<\/span> <<<\/span> config[<\/span>\"skills\"<\/span>]<\/span>[<\/span>\"java\"<\/span>]<\/span>.<\/span>as<\/span><<\/span>int><\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n    cout <<<\/span> \"skills android:\"<\/span> <<<\/span> config[<\/span>\"skills\"<\/span>]<\/span>[<\/span>\"android\"<\/span>]<\/span>.<\/span>as<\/span><<\/span>int><\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n    cout <<<\/span> \"skills python:\"<\/span> <<<\/span> config[<\/span>\"skills\"<\/span>]<\/span>[<\/span>\"python\"<\/span>]<\/span>.<\/span>as<\/span><<\/span>int><\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n\r\n    for<\/span>(<\/span>YAML:<\/span>:<\/span>const_iterator it=<\/span> config[<\/span>\"skills\"<\/span>]<\/span>.<\/span>begin<\/span>(<\/span>)<\/span>;<\/span> it !=<\/span> config[<\/span>\"skills\"<\/span>]<\/span>.<\/span>end<\/span>(<\/span>)<\/span>;<\/span>++<\/span>it)<\/span>\r\n    {<\/span>\r\n        cout <<<\/span> it-<\/span>><\/span>first.<\/span>as<\/span><<\/span>string><\/span>(<\/span>)<\/span> <<<\/span> \":\"<\/span> <<<\/span> it-<\/span>><\/span>second.<\/span>as<\/span><<\/span>int><\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n    }<\/span>\r\n\r\n    YAML:<\/span>:<\/span>Node test1 =<\/span> YAML:<\/span>:<\/span>Load<\/span>(<\/span>\"[1,2,3,4]\"<\/span>)<\/span>;<\/span>\r\n    cout <<<\/span> \" Type: \"<\/span> <<<\/span> test1.<\/span>Type<\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n\r\n    YAML:<\/span>:<\/span>Node test2 =<\/span> YAML:<\/span>:<\/span>Load<\/span>(<\/span>\"1\"<\/span>)<\/span>;<\/span>\r\n    cout <<<\/span> \" Type: \"<\/span> <<<\/span> test2.<\/span>Type<\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n\r\n    YAML:<\/span>:<\/span>Node test3 =<\/span> YAML:<\/span>:<\/span>Load<\/span>(<\/span>\"{'id':1,'degree':'senior'}\"<\/span>)<\/span>;<\/span>\r\n    cout <<<\/span> \" Type: \"<\/span> <<<\/span> test3.<\/span>Type<\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>\r\n\r\n    ofstream fout<\/span>(<\/span>\"testconfig.xml\"<\/span>)<\/span>;<\/span>\r\n\r\n    config[<\/span>\"score\"<\/span>]<\/span> =<\/span> 99<\/span>;<\/span>\r\n\r\n    fout <<<\/span> config;<\/span>\r\n\r\n    fout.<\/span>close<\/span>(<\/span>)<\/span>;<\/span>\r\n\r\n\r\n    return<\/span> 0<\/span>;<\/span>\r\n}<\/span><\/pre>\n<\/div>\n
\n
\u672c\u6587\u53c2\u4e0e\u817e\u8baf\u4e91\u81ea\u5a92\u4f53\u5206\u4eab\u8ba1\u5212<\/a>\uff0c\u6b22\u8fce\u6b63\u5728\u9605\u8bfb\u7684\u4f60\u4e5f\u52a0\u5165\uff0c\u4e00\u8d77\u5206\u4eab\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
\u539f\u6587\u5730\u5740   2019-05-<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[],"tags":[118],"class_list":["post-4248","post","type-post","status-publish","format-standard","hentry","tag-02-"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/4248","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/comments?post=4248"}],"version-history":[{"count":0,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/4248\/revisions"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=4248"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=4248"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=4248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}