纸牌排序算法

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/themagickeyjianan/article/details/88062493

/**
 *
 * @type {number[]}
 */
let cards = [
    101, 102, 101, 103, 103, 104, 103, 103, 104, 104,104, 104, 102, 103, 103
];

console.log("\n排序前 =", cards);

cards.sort(function (a, b) {
    return (b%100) != (a%100) ? ((a%100) - (b%100)) : (parseInt(a/100) - parseInt(b/100));
});

console.log("\n手牌按照-->数值和花色从小到大排序后 =", cards);

/**
 * 牌数量排序
 * @param arr
 * @param num
 * @returns {number}
 */
function count(arr, num) {
    let c = 0;
    for(let i = 0; i < arr.length; i++){
        if(arr[i] == num){
            c++;
        }
    }
    return c;
}

cards.sort(function (a, b) {

    var aCount = count(cards, a);
    var bCount = count(cards, b);
    return (aCount != bCount) ? (aCount - bCount) : (a-b);
});

console.log("\n出的3带1按照-->按照牌数量 和 数值从小到大排序后 =", cards);

/**
 排序前 = [ 101, 102, 101, 103, 103, 104, 103, 103, 104, 104, 104, 104, 102, 103, 103 ]

 手牌按照-->数值和花色从小到大排序后 = [ 101, 101, 102, 102, 103, 103, 103, 103, 103, 103, 104, 104, 104, 104, 104 ]

 出的3带1按照-->按照牌数量 和 数值从小到大排序后 = [ 101, 101, 102, 102, 104, 104, 104, 104, 104, 103, 103, 103, 103, 103, 103 ]
 */

注意:发小从小到大排序都是正确的，但是从大到小有点问题，记录一下!