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local tab=os.date("*t",os.time()) print(tab.year)print(tab.month)print(tab.day)print(tab.yday)print(tab.wday)2020Table.lua:212Table.lua:328Table.lua:4363Table.lua:52print(os.date("%m",os.time())) --12

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print(os.date("%Y年%m月%d日",os.time())) --2020年12月28日

local tab=os.date("*t")print(os.date("%Y/%m/%d",os.time(tab))) --2020/12/28tab.day=tab.day+2print(os.date("%Y/%m/%d",os.time(tab))) --2020/12/30

5.

local rapidjson = require "rapidjson"local ClientQuestCmdScript = CS.ClientQuestCmdScript--Lua事件通知function DataLuaNotify(key, msg)    local luadata = QKDataSubjectManager.GetData("DataLua")    luadata:Notify(key,msg)end--发送消息到服务器SendMsg = function(msg)    if msg == nil or string.len(msg) == 0 then        return    end    ClientQuestCmdScript.Instance:SendQuestClientData(msg)end--将Json字符串转成Tablefunction  JsonToTable(jsonStr)    local ok, res = pcall(rapidjson.decode,jsonStr)    if ok then        return res    end    return jsonStrendfunction  TableToJson(tbl)    local ok, res = pcall(rapidjson.encode,tbl)    if ok then        return res    end    return tblend---不显示小数点后面的0function FormatNum (num)    if num <= 0 then        return 0    else        local t1, t2 = math.modf(num)        ---小数如果为0，则去掉        if t2 > 0 then            return num        else            return t1        end    endend--- nNum 源数字--- n 小数位数function GetPreciseDecimal(nNum, n)    if type(nNum) ~= "number" then        return nNum;    end    n = n or 0;    n = math.floor(n)    if n < 0 then        n = 0;    end    local nDecimal = 10 ^ n    local nTemp = math.floor(nNum * nDecimal);    local nRet = nTemp / nDecimal;    return nRet;end--获取一个区间的随机数function GetRandom(n, m)    local strseed = tostring(math.ceil(Time.realtimeSinceStartup * 10000)):reverse():sub(1, 7)    -- print("seed=" .. strseed)    -- if string.len(strseed) > 7 then    --     strseed = string.sub(strseed,1, 7)    -- end    -- math.randomseed(tonumber(tostring(os.time()):reverse():sub(1,7)))    math.randomseed(tonumber(strseed))    if not n or not m then        return tonumber(string.format("%.1f",math.random()))    end    return math.random(n, m)end--长秒格式化(最大单位天)function FormatSecond(longsec, tag)    local tag_tag = {
   "天", "小时", "分", "秒"}    if tag == nil then        tag_tag = {
   ":", ":", ":", ":"}    end    s = longsec % 60    m = (longsec - s) / 60 % 60    h = ((longsec - s) / 60 - m) / 60 % 24    d = (((longsec - s) / 60 - m) / 60 - h) / 24    local time_str = ""    if d ~= 0 then        time_str = string.format("%02d", d) .. tag_tag[1]    end    if h ~= 0 then        time_str = time_str .. string.format("%02d", h) .. tag_tag[2]    end    if m ~= 0 then        time_str = time_str .. string.format("%02d", m) .. tag_tag[3]    end    if tag == nil then        if d == 0 and h == 0 and m == 0 then            time_str = time_str .. string.format("%02d秒", s)        else            time_str = time_str .. string.format("%02d", s)        end    else        time_str = time_str .. string.format("%02d秒", s)    end    return time_strend--回收Lua内存function CollectMemory(t)    local count = collectgarbage("count")    if count >= 8192 then        print("
   
    回收前:" .. count)                collectgarbage("collect")        print("
    
     回收后:" .. collectgarbage("count"))    endendfunction SubStringDef(source,index,length)    local r = ""    if nil ~= source and index >= 0 and index <= string.len(source) then        r = string.sub(source,index,length)     end    return rend--转换千分位加逗号function FormatNumberThousands (num)    local function checknumber(value)        return tonumber(value) or 0    end    local formatted = tostring(checknumber(num))    local k    while true do        formatted, k = string.gsub(formatted, "^(-?%d+)(%d%d%d)", '%1,%2')        -- print(formatted,k)        if k == 0 then             break end        end    return formattedendfunction table_maxn(t)    local max = nil    for i, v in pairs(t) do        if not max then            max = v        end        if max < v then            max = v        end    end    return maxend-- 计算 UTF8 字符串的长度，每一个中文算一个字符function utf8len(input)    local len  = string.len(input)    local left = len    local cnt  = 0    local arr  = {
   0, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc}    while left ~= 0 do        local tmp = string.byte(input, -left)        local i   = #arr        while arr[i] do            if tmp >= arr[i] then                left = left - i                break            end            i = i - 1        end        cnt = cnt + 1    end    return cntend
    
   

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