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number.lua
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number.lua
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local function splitNumPart(str)
local part = {}
part.int, part.dot, part.dec = string.match(str, "^(%d*)(%.?)(%d*)")
return part
end
local function GetPreciseDecimal(nNum, n)
if type(nNum) ~= "number" then nNum =tonumber(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
local function decimal_func(str, posMap, valMap)
local dec
posMap = posMap or {[1]="角"; [2]="分"; [3]="厘"; [4]="毫"}
valMap = valMap or {[0]="零"; "壹"; "贰"; "叁" ;"肆"; "伍"; "陆"; "柒"; "捌"; "玖"}
if #str>4 then dec = string.sub(tostring(str), 1, 4) else dec =tostring(str) end
dec = string.gsub(dec, "0+$", "")
if dec == "" then return "整" end
local result = ""
for pos =1, #dec do
local val = tonumber(string.sub(dec, pos, pos))
if val~=0 then result = result .. valMap[val] .. posMap[pos] else result = result .. valMap[val] end
end
result=result:gsub(valMap[0]..valMap[0] ,valMap[0])
return result:gsub(valMap[0]..valMap[0] ,valMap[0])
end
-- 把数字串按千分位四位数分割，进行转换为中文
local function formatNum(num,t)
local digitUnit,wordFigure
local result=""
num=tostring(num)
if tonumber(t) < 1 then digitUnit = {"", "十", "百","千"} else digitUnit = {"","拾","佰","仟"} end
if tonumber(t) <1 then
wordFigure = {"〇","一","二","三","四","五","六","七","八","九"}
else wordFigure = {"零","壹","贰","叁","肆","伍","陆","柒","捌","玖"} end
if string.len(num)>4 or tonumber(num)==0 then return wordFigure[1] end
local lens=string.len(num)
for i=1,lens do
local n=wordFigure[tonumber(string.sub(num,-i,-i))+1]
if n~=wordFigure[1] then result=n .. digitUnit[i] .. result else result=n .. result end
end
result=result:gsub(wordFigure[1]..wordFigure[1] ,wordFigure[1])
result=result:gsub(wordFigure[1].."$","") result=result:gsub(wordFigure[1].."$","")
return result
end
-- 数值转换为中文
function number2cnChar(num,flag,digitUnit,wordFigure) --flag=0中文小写反之为大写
local st,result
num=tostring(num) result=""
local num1,num2=math.modf(num)
if tonumber(num2)==0 then
if tonumber(flag) < 1 then
digitUnit = digitUnit or {[1]="万";[2]="亿"} wordFigure = wordFigure or {[1]="〇"; [2]="一"; [3]="十"; [4]="元"}
else
digitUnit = digitUnit or {[1]="万";[2]="亿"} wordFigure = wordFigure or {[1]="零"; [2]="壹"; [3]="拾"; [4]="元"}
end
local lens=string.len(num1)
if lens<5 then result=formatNum(num1,flag) elseif lens<9 then result=formatNum(string.sub(num1,1,-5),flag) .. digitUnit[1].. formatNum(string.sub(num1,-4,-1),flag)
elseif lens<13 then result=formatNum(string.sub(num1,1,-9),flag) .. digitUnit[2] .. formatNum(string.sub(num1,-8,-5),flag) .. digitUnit[1] .. formatNum(string.sub(num1,-4,-1),flag) else result="" end
result=result:gsub("^" .. wordFigure[1],"") result=result:gsub(wordFigure[1] .. digitUnit[1],"") result=result:gsub(wordFigure[1] .. digitUnit[2],"")
result=result:gsub(wordFigure[1] .. wordFigure[1],wordFigure[1]) result=result:gsub(wordFigure[1] .. "$","")
if lens>4 then result=result:gsub("^"..wordFigure[2].. wordFigure[3],wordFigure[3]) end
if result~="" then result=result .. wordFigure[4] else result="数值超限！" end
else return "数值超限！" end
return result
end
local function number2zh(num,t)
local result,wordFigure
result=""
if tonumber(t) <1 then
wordFigure = {"〇","一","二","三","四","五","六","七","八","九"}
else wordFigure = {"零","壹","贰","叁","肆","伍","陆","柒","捌","玖"} end
if tostring(num)==nil then return "" end
for pos=1,string.len(num) do
result=result..wordFigure[tonumber(string.sub(num, pos, pos)+1)]
end
result=result:gsub(wordFigure[1] .. wordFigure[1],wordFigure[1])
return result:gsub(wordFigure[1] .. wordFigure[1],wordFigure[1])
end
function number_translatorFunc(num)
local numberPart=splitNumPart(num)
local result={}
if numberPart.dot~="" then
table.insert(result,{number2cnChar(numberPart.int,0,{"万", "亿"},{"〇","一","十","点"})..number2zh(numberPart.dec,0),"〔数字小写〕"})
table.insert(result,{number2cnChar(numberPart.int,1,{"萬", "億"},{"〇","一","十","点"})..number2zh(numberPart.dec,1),"〔数字大写〕"})
else
table.insert(result,{number2cnChar(numberPart.int,0,{"万", "亿"},{"〇","一","十",""}),"〔数字小写〕"})
table.insert(result,{number2cnChar(numberPart.int,1,{"萬", "億"},{"零","壹","拾",""}),"〔数字大写〕"})
end
table.insert(result,{number2cnChar(numberPart.int,1)..decimal_func(numberPart.dec,{[1]="角"; [2]="分"; [3]="厘"; [4]="毫"},{[0]="零"; "壹"; "贰"; "叁" ;"肆"; "伍"; "陆"; "柒"; "捌"; "玖"}),"〔金额大写〕"})
table.insert(result,{number2cnChar(numberPart.int,0)..decimal_func(numberPart.dec,{[1]="角"; [2]="分"; [3]="厘"; [4]="毫"},{[0]="〇"; "一"; "二"; "三" ;"四"; "五"; "六"; "七"; "八"; "九"}),"〔金额小写〕"})
return result
end
-- print(#number_translatorFunc(3355.433))