{"id":1459,"date":"2026-03-20T10:55:36","date_gmt":"2026-03-20T02:55:36","guid":{"rendered":"https:\/\/www.tgwttt.xyz\/?p=1459"},"modified":"2026-03-20T10:55:36","modified_gmt":"2026-03-20T02:55:36","slug":"gflags","status":"publish","type":"post","link":"https:\/\/www.tgwttt.xyz\/?p=1459","title":{"rendered":"gflags"},"content":{"rendered":"\n

\u5b98\u2f45\u2f42\u6863\uff1a https:\/\/gflags.github.io\/gflags\/<\/a>
\u4ee3\u7801\u4ed3\u5e93\uff1ahttps:\/\/github.com\/gflags\/gflags<\/a>
<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n
\n

flags\u662f Google \u5f00\u53d1\u7684\u2f00\u4e2a\u5f00\u6e90\u5e93\uff0c\u2f64\u4e8e C++ \u5e94\u2f64\u7a0b\u5e8f\u4e2d\u547d\u4ee4\u2f8f\u53c2\u6570\u7684\u58f0\u660e\u3001\u5b9a\u4e49\u548c\u89e3\u6790\u3002gflags \u5e93\u63d0\u4f9b\u4e86\u2f00\u79cd\u7b80\u5355\u7684\u2f45\u5f0f\u6765\u6dfb\u52a0\u3001\u89e3\u6790\u548c\u2f42\u6863\u5316\u547d\u4ee4\u2f8f\u6807\u5fd7\uff08flags\uff09\uff0c\u4f7f\u5f97\u7a0b\u5e8f\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u7684\u8fd0\u2f8f\u65f6\u914d\u7f6e\u8fdb\u2f8f\u8c03\u6574\u3002
\u5b83\u5177\u6709\u5982\u4e0b\u2f0f\u4e2a\u7279\u70b9\uff1a<\/p>\n\n\n\n

\u2022 \u6613\u4e8e\u4f7f\u2f64\uff1agflags \u63d0\u4f9b\u4e86\u2f00\u5957\u7b80\u5355\u76f4\u89c2\u7684 API \u6765\u5b9a\u4e49\u548c\u89e3\u6790\u547d\u4ee4\u2f8f\u6807\u5fd7\uff0c\u4f7f\u5f97\u5f00\u53d1\u8005\u53ef\u4ee5\u8f7b\u677e\u5730\u4e3a\u5e94\u2f64\u7a0b\u5e8f\u6dfb\u52a0\u65b0\u7684\u53c2\u6570\u3002<\/p>\n\n\n\n

\u2022 \u2f83\u52a8\u5e2e\u52a9\u548c\u2f42\u6863\uff1agflags \u53ef\u4ee5\u2f83\u52a8\u2f63\u6210\u6bcf\u4e2a\u6807\u5fd7\u7684\u5e2e\u52a9\u4fe1\u606f\u548c\u2f42\u6863\uff0c\u8fd9\u6709\u52a9\u4e8e\u2f64\u2f3e\u7406\u89e3\u5982\u4f55\u4f7f\u2f64\u7a0b\u5e8f\u53ca\u5176\u53c2\u6570\u3002<\/p>\n\n\n\n

\u2022 \u7c7b\u578b\u5b89\u5168\uff1agflags \u2f40\u6301\u591a\u79cd\u6570\u636e\u7c7b\u578b\u7684\u6807\u5fd7\uff0c\u5305\u62ec\u5e03\u5c14\u503c\u3001\u6574\u6570\u3001\u5b57\u7b26\u4e32\u7b49\uff0c\u5e76\u4e14\u63d0\u4f9b\u4e86\u7c7b\u578b\u68c0\u67e5\u548c\u8f6c\u6362\u3002<\/p>\n\n\n\n

\u2022 \u591a\u5e73\u53f0\u2f40\u6301\uff1agflags \u53ef\u4ee5\u5728\u591a\u79cd\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u4f7f\u2f64\uff0c\u5305\u62ec Windows\u3001Linux \u548c macOS\u3002 <\/p>\n\n\n\n

\u2022 \u53ef\u6269\u5c55\u6027\uff1agflags \u5141\u8bb8\u5f00\u53d1\u8005\u2f83\u5b9a\u4e49\u6807\u5fd7\u7684\u6ce8\u518c\u548c\u89e3\u6790\u903b\u8f91\uff0c\u63d0\u4f9b\u4e86\u5f3a\u2f24\u7684\u6269\u5c55\u6027\u3002<\/p>\n<\/div>\n\n\n\n

gflags\u5b89\u88c5<\/strong>\n\u76f4\u63a5\u547d\u4ee4\u5b89\u88c5\uff1asudo apt-get install libgflags-dev<\/code><\/pre>\n\n\n\n
\u539f\u7801\u5b89\u88c5\uff1a\n# \u4e0b\u8f7d\u6e90\u7801 git clone https:\/\/github.com\/gflags\/gflags.git\n# \u5207\u6362\u2f6c\u5f55 cd gflags\/  mkdir build  cd build\/\n# \u2f63\u6210 Makefile cmake ..\n# \u7f16\u8bd1\u4ee3\u7801 make\n# \u5b89\u88c5 make install<\/code><\/pre>\n\n\n\n
gflags\u4f7f\u2f64<\/strong><\/p>\n\n\n\n
\n
\u5934\u2f42\u4ef6
\u4f7f\u2f64gflags\u5e93\u6765\u5b9a\u4e49\/\u89e3\u6790\u547d\u4ee4\u2f8f\u53c2\u6570\u5fc5\u987b\u5305\u542b\u5982\u4e0b\u5934\u2f42\u4ef6<\/p>\n\n\n\n
#include <gflags\/gflags.h><\/p>\n<\/div>\n\n\n\n
\n
\n
\u5b9a\u4e49\u53c2\u6570<\/p>\n\n\n\n
\u5229\u2f64 gflags \u63d0\u4f9b\u7684\u5b8f\u5b9a\u4e49\u6765\u5b9a\u4e49\u53c2\u6570\u3002\u8be5\u5b8f\u7684 3 \u4e2a\u53c2\u6570\u5206\u522b\u4e3a\u547d\u4ee4\u2f8f\u53c2\u6570\u540d\uff0c\u53c2\u6570\u9ed8\u8ba4\u503c\uff0c\u53c2\u6570\u7684\u5e2e\u52a9\u4fe1\u606f\u3002<\/p>\n<\/div>\n\n\n\n
DEFINE_bool(reuse_addr, true, \"\u662f\u5426\u5f00\u59cb\u2f79\u7edc\u5730\u5740\u91cd\u2f64\u9009\u9879\");\nDEFINE_int32(log_level, 1, \"\u2f47\u5fd7\u7b49\u7ea7\uff1a1-DEBUG, 2-WARN, 3-ERROR\");\nDEFINE_string(log_file, \"stdout\", \"\u2f47\u5fd7\u8f93\u51fa\u4f4d\u7f6e\u8bbe\u7f6e\uff0c\u9ed8\u8ba4\u4e3a\u6807\u51c6\u8f93\u51fa\");<\/code><\/pre>\n\n\n\n
gflags\u2f40\u6301\u5b9a\u4e49\u591a\u79cd\u7c7b\u578b\u7684\u5b8f\u51fd\u6570\uff1a<\/p>\n\n\n\n
DEFINE_bool\nDEFINE_int32\nDEFINE_int64DEFINE_uint64\nDEFINE_double\nDEFINE_string<\/code><\/pre>\n<\/div>\n\n\n\n
\u8bbf\u95ee\u53c2\u6570
        \u6211\u4eec\u53ef\u4ee5\u5728\u7a0b\u5e8f\u4e2d\u901a\u8fc7 FLAGS_reuse_addr \u50cf\u6b63\u5e38\u53d8\u91cf\u2f00\u6837\u8bbf\u95ee\u6807\u5fd7\u53c2\u6570\u3002\u2f50\u5982\u5728\u4e0a\u2faf\u7684\u4f8b\u2f26\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7 FLAGS_log_level \u548c FLAGS_log_file \u53d8\u91cf\u6765\u8bbf\u95ee\u547d\u4ee4\u2f8f\u53c2\u6570\u3002<\/p>\n\n\n\n
\u4e0d\u540c\u2f42\u4ef6\u8bbf\u95ee\u53c2\u6570
        \u5982\u679c\u60f3\u518d\u53e6\u5916\u2f00\u4e2a\u2f42\u4ef6\u8bbf\u95ee\u5f53\u524d\u2f42\u4ef6\u7684\u53c2\u6570\uff0c\u4ee5\u53c2\u6570 FLAGS_reuse_addr \u4e3a\u4f8b\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u2f64\u2f64\u5b8f DECLARE_bool(reuse_addr) \u6765\u58f0\u660e\u5f15\u2f0a\u8fd9\u4e2a\u53c2\u6570\u3002\u5176\u5b9e\u8fd9\u4e2a\u5b8f\u5c31\u76f8\u5f53\u4e8e\u505a\u4e86 extern FLAGS_reuse_addr \uff0c \u5b9a\u4e49\u5916\u90e8\u94fe\u63a5\u5c5e\u6027\u3002<\/p>\n\n\n\n
\n
\n
\u521d\u59cb\u5316\u6240\u6709\u53c2\u6570
        \u5f53\u6211\u4eec\u5b9a\u4e49\u597d\u53c2\u6570\u540e\uff0c\u9700\u8981\u544a\u8bc9\u53ef\u6267\u2f8f\u7a0b\u5e8f\u53bb\u5904\u7406\u89e3\u6790\u547d\u4ee4\u2f8f\u4f20\u2f0a\u7684\u53c2\u6570\uff0c\u4f7f\u5f97 FLAGS_* \u53d8\u91cf\u80fd\u5f97\u5230\u6b63\u786e\u8d4b\u503c\u3002\u6211\u4eec\u9700\u8981\u5728main\u51fd\u6570\u4e2d\uff0c\u8c03\u2f64\u4e0b\u2faf\u7684\u51fd\u6570\u6765\u89e3\u51b3\u547d\u4ee4\u2f8f\u4f20\u2f0a\u7684\u6240\u6709\u53c2\u6570\u3002<\/p>\n\n\n\n
int main(int argc, char *argv[]){\n         google::ParseCommandLineFlags(&argc, &argv, true);\n         return 0;\n}<\/code><\/pre>\n<\/div>\n\n\n\n
        \u7b2c\u4e09\u4e2a\u53c2\u6570\u88ab\u79f0\u4e3a remove_flags \u3002\u5982\u679c\u5b83\u4e3a true , \u8868\u2f70 ParseCommandLineFlags \u4f1a\u4eceargv \u4e2d\u79fb\u9664\u6807\u8bc6\u548c\u5b83\u4eec\u7684\u53c2\u6570\uff0c\u76f8\u5e94\u51cf\u5c11 argc \u7684\u503c\u3002\u5982\u679c\u5b83\u4e3afalse , ParseCommandLineFlags \u4f1a\u4fdd\u7559 argc \u4e0d\u53d8\uff0c\u4f46\u5c06\u4f1a\u91cd\u65b0\u8c03\u6574\u5b83\u4eec\u7684\u987a\u5e8f\uff0c\u4f7f\u5f97\u6807\u8bc6\u518d\u524d\u2faf\u3002<\/p>\n<\/div>\n\n\n\n
\n
\u8fd0\u2f8f\u53c2\u6570\u8bbe\u7f6e<\/p>\n\n\n\n
\n
string\u548cint\u8bbe\u7f6e\u53c2\u6570<\/p>\n\n\n\n
exec --log_file=\".\/main.log\"\nexec -log_file=\".\/main.log\"\nexec --log_file \".\/main.log\"\nexec -log_file \".\/main.log\"<\/code><\/pre>\n<\/div>\n\n\n\n
\n
bool\u8bbe\u7f6e\u53c2\u6570<\/p>\n\n\n\n
exec --reuse_addr\nexec --noreuse_addrexec --reuse_addr=true\nexec --reuse_addr=false<\/code><\/pre>\n<\/div>\n<\/div>\n\n\n\n
\n
\n
\u914d\u7f6e\u2f42\u4ef6\u7684\u4f7f\u2f64
        \u914d\u7f6e\u2f42\u4ef6\u7684\u4f7f\u2f64\uff0c\u5176\u5b9e\u5c31\u662f\u4e3a\u4e86\u8ba9\u7a0b\u5e8f\u7684\u8fd0\u2f8f\u53c2\u6570\u914d\u7f6e\u66f4\u52a0\u6807\u51c6\u5316\uff0c\u4e0d\u9700\u8981\u6bcf\u6b21\u8fd0\u2f8f\u7684\u65f6\u5019\u90fd\u2f3f\u52a8\u6536\u2f0a\u6bcf\u4e2a\u53c2\u6570\u7684\u6570\u503c\uff0c\u2f7d\u662f\u901a\u8fc7\u914d\u7f6e\u2f42\u4ef6\uff0c\u2f00\u6b21\u7f16\u5199\uff0c\u6c38\u4e45\u4f7f\u2f64\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u914d\u7f6e\u2f42\u4ef6\u4e2d\u9009\u9879\u540d\u79f0\u5fc5\u987b\u4e0e\u4ee3\u7801\u4e2d\u5b9a\u4e49\u7684\u9009\u9879\u540d\u79f0\u2f00\u81f4\uff0c\u5c24\u5176\u9700\u8981\u6ce8\u610f\u7684\u662f\u914d\u7f6e\u2f42\u4ef6\u4e2d\u7684\u5b57\u7b26\u4e32\u6570\u636e\u4e0d\u9700\u8981\u4f7f\u2f64\u53cc\u5f15\u53f7\u3002<\/p>\n\n\n\n
main.conf<\/p>\n\n\n\n
-reuse_addr=true\n-log_level=3\n-log_file=.\/log\/main.log<\/code><\/pre>\n<\/div>\n\n\n\n
\n
\u4f7f\u7528\uff1a<\/p>\n\n\n\n
exec --flagfile=filename<\/code><\/pre>\n<\/div>\n<\/div>\n\n\n\n
\u7279\u6b8a\u53c2\u6570\u6807\u8bc6
gflags\u4e5f\u9ed8\u8ba4\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u2f0f\u4e2a\u7279\u6b8a\u7684\u6807\u8bc6\u3002<\/p>\n\n\n\n
--help # \u663e\u2f70\u2f42\u4ef6\u4e2d\u6240\u6709\u6807\u8bc6\u7684\u5e2e\u52a9\u4fe1\u606f\n--helpfull # \u548c-help \u2f00\u6837, \u5e2e\u52a9\u4fe1\u606f\u66f4\u5168\u2faf\u2f00\u4e9b\n--helpshort # \u53ea\u663e\u2f70\u5f53\u524d\u6267\u2f8f\u2f42\u4ef6\u2fa5\u7684\u6807\u5fd7\n--helpxml # \u4ee5 xml \u2f45\u5f0f\u6253\u5370\uff0c\u2f45\u4fbf\u5904\u7406\n--version # \u6253\u5370\u7248\u672c\u4fe1\u606f\uff0c\u7531 google::SetVersionString()\u8bbe\u5b9a\n--flagfile -flagfile=f #\u4ece\u2f42\u4ef6 f \u4e2d\u8bfb\u53d6\u547d\u4ee4\u2f8f\u53c2\u6570<\/code><\/pre>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\n
\u7f16\u8bd1\uff1a<\/p>\n\n\n\n
g++ main.cc -o main -lgflags<\/code><\/pre>\n<\/div>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5b98\u2f45\u2f42\u6863\uff1a https:\/\/gflags.github.io\/gflags\/\u4ee3\u7801\u4ed3\u5e93\uff1ahttps:\/\/gith…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-1459","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/www.tgwttt.xyz\/index.php?rest_route=\/wp\/v2\/posts\/1459","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tgwttt.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tgwttt.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tgwttt.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tgwttt.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1459"}],"version-history":[{"count":1,"href":"https:\/\/www.tgwttt.xyz\/index.php?rest_route=\/wp\/v2\/posts\/1459\/revisions"}],"predecessor-version":[{"id":1462,"href":"https:\/\/www.tgwttt.xyz\/index.php?rest_route=\/wp\/v2\/posts\/1459\/revisions\/1462"}],"wp:attachment":[{"href":"https:\/\/www.tgwttt.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1459"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tgwttt.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1459"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tgwttt.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}