无聊统计了下列表去重到底有多少种方法。1.集合list(set(alist))如果要保持顺序:import randomif __name__==‘__main__‘: a=[random.randint(0,10)
https://www.u72.net/daima/x8vz.html - 2024-07-17 13:45:12 - 代码库1.不带类型写法:1List listWithoutDup = new ArrayList(new HashSet(listWithDup));2.带类型写法(以String类型为例):1)Java 7以下写
https://www.u72.net/daima/13ur.html - 2024-08-31 02:01:33 - 代码库说说API的防重放机制2017-03-20 18:19 by 轩脉刃, 685 阅读, 7 评论, 收藏, 编辑说说API的防重放机制我们在设计接口的时候,最怕一个接口被用户截
https://www.u72.net/daima/76bx.html - 2024-09-10 16:34:58 - 代码库function deleteRepeat(){//删除重复的 var _arr=[1,1,1,3,3,3,5,8,8,9,10]; //console.log(_arr); fo
https://www.u72.net/daima/4vk7.html - 2024-09-04 19:15:52 - 代码库MongoDB的destinct命令是获取特定字段中不同值列表。该命令适用于普通字段,数组字段和数组内嵌文档.mongodb的distinct的语句:db.users.distinct(‘l
https://www.u72.net/daima/46vx.html - 2024-07-22 15:41:48 - 代码库方法一:function distinctAry(arr) { var o = {}; if (Array.isArray(arr) && arr.length > 0) { for (var i = 0, l = arr.length;
https://www.u72.net/daima/46ez.html - 2024-09-05 10:02:59 - 代码库//去除数字元素数组function sortnum(a, b) { return a - b;}Array.prototype.unique1 = function() { this.sort(sortnum); var newnumbers = [
https://www.u72.net/daima/9a84.html - 2024-07-27 01:39:50 - 代码库1 function unique(arr) { 2 var result = [], isRepeated; 3 for (var i = 0, len = arr.length; i < len; i++) { 4 isRepeate
https://www.u72.net/daima/9d97.html - 2024-09-13 03:22:51 - 代码库function unique(arr) { var result = [], hash = {}; for (var i = 0, elem; (elem = arr[i]) != null; i++) {//循环arr数组 if (!ha
https://www.u72.net/daima/8dh0.html - 2024-09-11 09:09:35 - 代码库DELETE FROM `obd_comprehensive_d_1`USING `obd_comprehensive_d_1`,( SELECT DISTINCT MIN(`id`) AS `id` , box_id,data_timeFROM `obd_comprehe
https://www.u72.net/daima/nk73k.html - 2024-08-04 11:10:29 - 代码库打印九九乘法表1 * 1 = 1 1 * 2 = 2 2 * 2 = 4 1 * 3 = 3 2 * 3 = 6 3 * 3 = 9 1 * 4 = 4 2 * 4 = 8 3 * 4 = 12 4 * 4 = 16 1 * 5 = 5 2 * 5
https://www.u72.net/daima/nk9ar.html - 2024-09-28 06:44:01 - 代码库function remove(array){var obj={};newarray=[];for(var i in array){console.log(i);var arg=array[i];if(obj[arg]){}else{obj[arg]=ar
https://www.u72.net/daima/na6z6.html - 2024-09-19 07:36:35 - 代码库一、回顾3种循环结构1、while语法条件表达式的初始值;while(条件表达式){ 循环操作; 更改条件表达式的语句;}特点:先判断,再执行,有可能一次循环都
https://www.u72.net/daima/nh1r3.html - 2024-09-24 05:13:56 - 代码库四种算法来实现这个目的: 1.Array.prototype.unique1 = function () { var n = []; //一个新的临时数组 for (var i = 0; i < this.length; i+
https://www.u72.net/daima/nsw38.html - 2024-08-10 12:14:39 - 代码库3.1.2 Quoting-------------* Menu:* Escape Character:: How to remove the special meaning from a single character.* Single Quotes:: How t
https://www.u72.net/daima/nuuc7.html - 2024-10-23 13:41:38 - 代码库注:以下的方法都是来自前人的贡献和分享。我也是抛砖引玉。顺便提高一下自己的记忆力。 Array.prototype.removeByValue = http://www.mamicode.com/f
https://www.u72.net/daima/nrm0s.html - 2024-10-15 23:46:39 - 代码库1、浏览器把获取到的html代码解析成1个Dom树。2、浏览器把样式解析成样式结构体,在解析过程中会去掉各自浏览器不能识别的样式比如-moz,-webkit等。3、
https://www.u72.net/daima/nrd98.html - 2024-08-09 02:56:13 - 代码库using System;using System.Collections.Generic;using System.Data;using System.Linq;using System.Text;using System.Threading.Tasks;namespace R
https://www.u72.net/daima/ncxmm.html - 2024-08-08 09:47:54 - 代码库awk ‘! a[$0]++’ 怎么理解? 这是一个非常经典的去重复项的awk语句,虽然短小,不过涉及到了不少知识点,下面一一解读:<1> :”!” 即非。<2>:a[$0],以$0为数
https://www.u72.net/daima/nf4z6.html - 2024-10-08 03:55:39 - 代码库function unique(array){ var n=[]; //新的临时数组 for(var i=0;i<array.length;i++){ if(n.indexOf(array[i]) == "-1")
https://www.u72.net/daima/nwsn3.html - 2024-11-05 22:25:02 - 代码库