默认会四舍五入
- 比如:%0.2f 会四舍五入后,保留小数点后2位
print(string.format("%.1f",0.26))
---会输出0.3,而不是0.2
Lua保留一位小数
--- nNum 源数字
--- n 小数位数
function Tool. GetPreciseDecimal(nNum, n)if type(nNum) ~= "number" thenreturn nNum;endn = n or 0;n = math.floor(n)if n < 0 thenn = 0;endlocal nDecimal = 10 ^ nlocal nTemp = math.floor(nNum * nDecimal);local nRet = nTemp / nDecimal;return nRet;
end
参考:https://www.cnblogs.com/pk-run/p/4444582.html