local encodeStr = "%E6%B0%94"
local decodeStr = "";
for i = 2, #encodeStr - 1, 3 dolocal num = encodeStr:sub(i, i + 1);num = tonumber(num, 16);decodeStr = decodeStr .. string.char(num);
end
ngx.say(decodeStr)

local str = "a1b1c1d"
local result = string.gsub(str,"1","2")   --将1替换成2

local str = "A1B1C1"local result = string.gsub(str,"1","0",2)    --输出的结果为：A0B0C1

local mysql = require "resty.mysql"
local db = mysql:new()
db:connect{host = "10.10.3.218",port = 3306,database = "test_db",user = "root",password = "123456",max_packet_size = 1024*1024
}
local result = db:query("SELECT ID,NAME FROM TABLE")
ngx.say(result[1]["ID"])
ngx.say(result[1]["NAME"])

local redis = require "resty.redis"
local cache = redis.new()
cache.connect(cache,"10.10.3.208", "6379")
local result = cache:get("key")

local redis = require "resty.redis"
local cache = redis.new()
cache.connect(cache,"10.10.3.208", "6379")
cache:init_pipeline()
for i=1,10 docache:get("key")
end
local res = cache:commit_pipeline()
for j=1,#res dongx.say(res[j])
end

local totalPage = math.floor((totalRow+pageSize-1)/pageSize)

--排列顺序优先级从高到低依次为：
--第一：等级由高到低；
--第二：稀有度由高到低；
--第三：伙伴ID从高到低。
local function sort_(a, b)local rlocal al = tonumber(a.level)local bl = tonumber(b.level)local aq = tonumber(a.data.quality)local bq = tonumber(b.data.quality)local aid = tonumber(a.pid)local bid = tonumber(b.pid)if  al == bl thenif aq == bq thenr = aid > bidelser = aq > bqend elser = al > blendreturn r
endtable.sort(tableName,sort_)

local function keepTwoDecimalPlaces(decimal)decimal = math.floor((decimal * 100)+0.5)*0.01       return  decimal
endngx.say(keepTwoDecimalPlaces(1.369))