这段代码在这里使用Fisher Yates洗牌算法给一个指定的数组进行洗牌(随机排序). function shuffle(arr) { var i, j, temp; for (i = arr.length - 1; i > 0; i--) { j = Math.floor(Math.random() * (i + 1)); temp = arr[i]; arr[i] = arr[j]; arr…
第i个元素和index在[i,length-1]之间的一个数随机交换 package Hard; import CtCILibrary.AssortedMethods; /** * * Write a method to shuffle a deck of cards. It must be a perfect shuffle - in other words, each 52! permutations of the deck has to be equally likely. Assume…