本文通过实例代码给大家介绍了基于javascript实现微信抢红包功能，金额随机，额度在0.01和(剩余平均值*2)之间，具体的实例代码大家参考下本文
金额随机：额度在0.01和(剩余平均值*2)之间。
/**
* 抢红包
* @param {[number]} totalAmount [总金额]
* @param {[number]} totalPeople [总人数]
* @return {[Array]} [每个人抢到的金额]
*/
function assign(totalAmount, totalPeople){
var remainAmount = +totalAmount;
var remainPeople = +totalPeople;
var arr = [];
while(remainPeople > 0){
let num = scramble(remainAmount, remainPeople);
remainAmount = remainAmount - num;
remainPeople--;
arr.push(num);
}
return arr;
}
function scramble(remainAmount, remainPeople){
if(remainPeople === 1){
return +remainAmount.toFixed(2);
}
let max = ((remainAmount / remainPeople) * 2 - 0.01).toFixed(2);
let min = 0.01;
let range = max - min;
let rand = Math.random();
let num = min + Math.round(rand * range); //四舍五入
return num;
}总结
