微信红包算法-二倍均值法

function shareMoeny(s_peopleCount, s_moeny) {

            randomMoneyList = [];

            for (let i = 0; i < s_peopleCount - 1; i++) {  //随机的次数为人数-1  为最后一个人留位置

                let random = createRandom(0, (s_moeny / s_peopleCount) * 2);//二倍均值法  拿到随机金额 

                s_moeny -= random;

                randomMoneyList.push(random);

                console.log("第" + parseInt(i + 1) + "人分得:" + random);

            }

            randomMoneyList.push(s_moeny);

            return randomMoneyList;

        }

        //生成[min,max]的随机数

        function createRandom(min, max) {

            let backdataNumber = (Math.random() * (max - min + 1) + min).toFixed(2);  //2位小数

            return backdataNumber;

        }

        shareMoeny(10, 100);