两元一次，次数越多，输的越多。

var aaa = function () {
    var zong = [];
    for (var i = 0; i < 24; i++) {
        zong.push(i);
    }
    var xuan = [];
    var random = 0;
    for (var i = 0; i < 12; i++) {
        random = Math.round(Math.random() * (zong.length - 1));
        xuan.push(zong[random]);
        zong.splice(random, 1)
    }
    var z1 = [], z2 = [], z3 = [];
    for (var i of xuan) {
        if (i < 8) {
            z1.push(i);
        } else
        if (i > 7 && i < 16) {
            z2.push(i);
        } else
        if (i > 15) {
            z3.push(i);
        }
    }
    var zu = [z1.length, z2.length, z3.length];
    var jiangli = {
        "840": 1000,
        "750": 100, 
        "660": 50, 
        "831": 20, 
        "741": 10, 
        "651": 5, 
        "822": 2,
        "732": 2,
        "642": 2,
        "552": 1, 
        "633": 1,
        "543": 0,
        "444": 0
    }
    var r = jiangli[zu.sort((a, b) => b - a).join('')];
    return r
}