摘要： Fisher–Yates shuffle 基本思想（Knuth shuffle ）：To shuffle an array a of n elements (indices 0..n-1): for i from n − 1 downto 1 do j ← random integer with 0 ≤ j ≤ i exchange a[j] and a[i]JDK源代码如下：/** * Moves every element of the List to a random new position in the list. * * @par... 阅读全文