在日常开发中,经常会遇到随机排序的需求,思路就是利用Math.random()方法,抽取随机数,让数组中的元素进行对调: 话不多说直接上代码,方法一:基本思路就是将a中随机抽取一个元素,放入b中,再从a中删除这个被抽中的元素,时间复杂度为a的长度平方,因为要遍历两次a function shuffle(a) { var b = []; while (a.length > 0) { var index = parseInt(Math.random() * (a.length - 1)); b.pu
ios没有提供简单的汉字拼音排序方法,在网上看到了oc方法,这里写以下对应的swift方法 var stringCompareBlock: (String,String)->Bool = { (str1:String, str2:String) -> Bool in var nsStr1 = str1 as NSString var nsStr2 = str2 as NSString var encode:NSStringEncoding = CFStringConvertEncodingTo
方法一: function getRandomInt(min, max) { return Math.floor(Math.random() * (max - min + 1) + min) } function shuffle(arr) { let _arr = arr.slice() for (let i = 0; i < _arr.length; i++) { let j = getRandomInt(0, i) let t = _arr[i] _arr[i] = _arr[j] _arr
Java 字符串数组首字母排序 字符串数组按首字母排序:(区分大小写) String[] strings = new String[]{"ba","aa","CC","Ba","DD","ee","dd"}; Arrays.sort(strings); for (int i = 0; i < strings.length; i++) { System.out.p