{"id":1801,"date":"2020-04-18T08:51:16","date_gmt":"2020-04-18T00:51:16","guid":{"rendered":"http:\/\/blog.coolcoding.cn\/?p=1801"},"modified":"2020-04-18T08:51:16","modified_gmt":"2020-04-18T00:51:16","slug":"%e5%b0%86lua5-1%e7%9a%84setfenv%e8%bf%81%e7%a7%bb%e5%88%b0lua5-2%e7%9a%84_env","status":"publish","type":"post","link":"https:\/\/blog.coolcoding.cn\/?p=1801","title":{"rendered":"\u5c06Lua5.1\u7684setfenv\u8fc1\u79fb\u5230Lua5.2\u7684_ENV"},"content":{"rendered":"\n

\u539f\u6765\u5728Lua5.1\u4e2d<\/p>\n\n\n\n

\u7ba1\u7406\u5668\u5b9a\u4e49<\/p>\n\n\n\n

function _G.Meta(name)<\/p>\n\n\n\n

  setfenv(2, setmetatable({}, Base))<\/p>\n\n\n\n

end<\/p>\n\n\n\n

\u4f7f\u7528\u4e2d\u5b9a\u4e49<\/p>\n\n\n\n

Meta(“name1”)<\/p>\n\n\n\n

function Execute()<\/p>\n\n\n\n

end<\/p>\n\n\n\n

\u73b0\u5728\u5728Lua5.2\u4e2d<\/p>\n\n\n\n

\u7ba1\u7406\u5668\u5b9a\u4e49<\/p>\n\n\n\n

function _G.Meta(name)<\/p>\n\n\n\n

  return setmetatable({}, Base)<\/p>\n\n\n\n

end<\/p>\n\n\n\n

\u4f7f\u7528\u4e2d\u5b9a\u4e49<\/p>\n\n\n\n

local _ENV=Meta(“name1”)<\/p>\n\n\n\n

function Execute()<\/p>\n\n\n\n

end<\/p>\n","protected":false},"excerpt":{"rendered":"

\u539f\u6765\u5728Lua5.1\u4e2d \u7ba1\u7406\u5668\u5b9a\u4e49 function _G.Meta(name)   setfenv( […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=\/wp\/v2\/posts\/1801"}],"collection":[{"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1801"}],"version-history":[{"count":1,"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=\/wp\/v2\/posts\/1801\/revisions"}],"predecessor-version":[{"id":1802,"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=\/wp\/v2\/posts\/1801\/revisions\/1802"}],"wp:attachment":[{"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1801"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1801"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.coolcoding.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1801"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}