https://chunghwamc.com/wiki/index.php?action=history&feed=atom&title=%E6%A8%A1%E7%B5%84%3ANo_globals 2026-04-06T02:31:39Z 本 wiki 上此頁面的修訂紀錄 MediaWiki 1.43.6 https://chunghwamc.com/wiki/index.php?title=%E6%A8%A1%E7%B5%84:No_globals&diff=144&oldid=prev 2024-03-23T14:44:19Z

<p>建立內容為「local mt = getmetatable(_G) or {} function mt.__index (t, k) if k ~= &#039;arg&#039; then error(&#039;嘗試讀取空全域變數：&#039; .. tostring(k), 2) end return nil end function mt.__newindex(t, k, v) if k ~= &#039;arg&#039; then error(&#039;嘗試寫入全域變數：&#039; .. tostring(k), 2) end rawset(t, k, v) end setmetatable(_G, mt)」的新頁面</p> <p><b>新頁面</b></p><div>local mt = getmetatable(_G) or {}<br /> function mt.__index (t, k)<br /> if k ~= &#039;arg&#039; then<br /> error(&#039;嘗試讀取空全域變數：&#039; .. tostring(k), 2)<br /> end<br /> return nil<br /> end<br /> function mt.__newindex(t, k, v)<br /> if k ~= &#039;arg&#039; then<br /> error(&#039;嘗試寫入全域變數：&#039; .. tostring(k), 2)<br /> end<br /> rawset(t, k, v)<br /> end<br /> setmetatable(_G, mt)</div>

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