可控制中奖率的跑马灯，给予php+ajax，经典概率算法(Can control the winning rate of the marquee, given php+ajax, the classical probability algorithm)

概率抽奖算法Demo（适应刮刮卡和轮盘类等抽奖）(Probability lottery algorithm Demo (to adapt to such scratch CARDS and roulette draw))

# 常用函数 简介:php常用的一些函数、方法收集 ## formula.php - 1.概率算法(抽奖程序)! - 2.红包算法! ## listDir.php - 1.遍历某个目录下的全部文件 ## Tools.php - 1._getMillisecond获取PHP毫秒数(# commonly used functions Introduction: some functions and methods commonly used in PHP a