lua之urlEncode和urlDecode方法。

local function urlEncode(s)     s = string.gsub(s, "([^%w%.%- ])", function(c) return string.format("%%%02X", string.byte(c)) end)    return string.gsub(s, " ", "+")endlocal function urlDecode(s)    s = string.gsub(s, '%%(%x%x)', function(h) return string.char(tonumber(h, 16)) end)    return send