金額隨機(jī)：額度在0.01和(剩余平均值*2)之間。

/** * 搶紅包 * @param {[number]} totalAmount [總金額] * @param {[number]} totalPeople [總?cè)藬?shù)] * @return {[Array]}       [每個(gè)人搶到的金額] */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;}

總結(jié)

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