排序

let sort = (arr, callback) => {
    for (let i = 0; i < arr.length; i++) {
        for (let j = 0; j < arr.length; j++) {
            if (callback(arr[i], arr[j]) > 0) {
                let temp = arr[i];
                arr[i] = arr[j];
                arr[j] = temp;
            }
        }
    }
    return arr;
}
let arr = [1, 5, 7, 9, 32, 4, 7, 5, 62, 14, 53, 354, 26, 5, -5, -8, -10];
let arr1 = sort(arr, (a, b) => {
    return b - a;
});
console.log(arr1)