dictionary

Convert a Dictionary to string of url parameters?

由 ≡放荡痞女 提交于 2020-12-08 05:18:16
问题 Is there a way to convert a Dictionary in code into a url parameter string? e.g. // An example list of parameters Dictionary<string, object> parameters ...; foreach (Item in List) { parameters.Add(Item.Name, Item.Value); } string url = "http://www.somesite.com?" + parameters.XX.ToString(); Inside MVC HtmlHelpers you can generate URLs with the UrlHelper (or Url in controllers) but in Web Forms code-behind the this HtmlHelper is not available. string url = UrlHelper.GenerateUrl("Default",

Convert a Dictionary to string of url parameters?

由 ╄→尐↘猪︶ㄣ 提交于 2020-12-08 05:18:05
问题 Is there a way to convert a Dictionary in code into a url parameter string? e.g. // An example list of parameters Dictionary<string, object> parameters ...; foreach (Item in List) { parameters.Add(Item.Name, Item.Value); } string url = "http://www.somesite.com?" + parameters.XX.ToString(); Inside MVC HtmlHelpers you can generate URLs with the UrlHelper (or Url in controllers) but in Web Forms code-behind the this HtmlHelper is not available. string url = UrlHelper.GenerateUrl("Default",

Java基础整理（全是干货）

由 不问归期 提交于 2020-12-08 04:38:08
一.hashMap与hashTable与ConcurrentHashMap： 1.HashMap是继承自AbstractMap类，而HashTable是继承自Dictionary类。不过它们都同时实现了map、Cloneable（可复制）、Serializable（可序列化）这三个接口。<Dictionary类是一个已经被废弃的类> 2.Hashtable既不支持Null key也不支持Null value。HashMap中，null可以作为键，这样的键只有一个，可以有一个或多个键所对应的值为null。 3.Hashtable是线程安全的，它的每个方法中都加入了Synchronize方法。在多线程并发的环境下，可以直接使用Hashtable，不需要自己为它的方法实现 同步，HashMap不是线程安全的，在多线程并发的环境下，可能会产生死锁等问题。如果想要线程安全的 HashMap，可以通过Collections类的静态方法synchronize dMap获得线程安全的HashMap。 <Map map = Collections.synchronizedMap(new HashMap())>; 4.hashMap的数据结构：HashMap的底层主要是基于数组和链表来实现的，它之所以有相当快的查询速度主要是因为它是通过计算散列码来决定存储的位置。 5

[LeetCode] 139. Word Break 单词拆分

由 有些话、适合烂在心里 提交于 2020-12-07 00:56:23
Given a non-empty string s and a dictionary wordDict containing a list of non-empty words, determine if s can be segmented into a space-separated sequence of one or more dictionary words. Note: The same word in the dictionary may be reused multiple times in the segmentation. You may assume the dictionary does not contain duplicate words. Example 1: Input: s = "leetcode", wordDict = ["leet", "code"] Output: true Explanation: Return true because "leetcode" can be segmented as "leet code" . Example 2: Input: s = "applepenapple", wordDict = ["apple", "pen"] Output: true Explanation: Return true

高级测试工程师面试必问面试基础整理——python基础（一）（首发公众号：子安之路）

由 本小妞迷上赌 提交于 2020-12-05 06:44:11
现在深圳市场行情，高级测试工程师因为都需要对编程语言有较高的要求，但是大部分又没有python笔试机试题，所以面试必问python基础，这里我整理一下python基本概念， 陆续收集到面试中python相关问题都会整理在这里 （一）python数据类型问题list 1，Python3 数据类型有哪些？ Number 数字 String 字符串 List 列表 Tuple 元组 Dictionary 字典 Set 集合 Null 空值 Boolean 布尔值 一共8种，前6种为常见数据类型。 （ 二）Python的数据类型概念，这里会问数据类型区别，例如，list和set区别，list和tuple区别等等： 1，Number 数字： int（整型） float（浮点型） complex（复数） 　2，String 字符串： 可以使用单引号（''）或双引号（""）来表示字符串； 多行字符串可以使用三重引号 ''' 或 """来表示； 字符串可以被索引和截取； 加号（+）是字符串的连接符， 星号（*） 表示复制当前字符串，紧跟的数字为复制的次数； 字符串内部既包含 ' 又包含 "， 可以用转义字符 \ 来标识 比如： 'I\'m \"OK\"!' \n 表示换行， \t 表示制表符，字符 \ 本身也要转义，所以 \\ 表示的字符就是 \ 3，List 列表： 列表是有序的元素序列；

Give names to Key and Value in C# Dictionary to improve code readability

由 左心房为你撑大大i 提交于 2020-12-04 18:11:11
问题 In C# struct, we can know clearly the purpose of a variable by it's name. For example, public struct Book { public string title; public string author; } Then, i know b.title is a type of string and it's referring to title. However in C# dictionary, we can only specify the type Dictionary<string,string> d How can i make the code more readable such that the key of the dictionary is type of string and it is referring to title , and the value is type of string and it is referring to author ? That

Give names to Key and Value in C# Dictionary to improve code readability

由 前提是你 提交于 2020-12-04 18:10:17
问题 In C# struct, we can know clearly the purpose of a variable by it's name. For example, public struct Book { public string title; public string author; } Then, i know b.title is a type of string and it's referring to title. However in C# dictionary, we can only specify the type Dictionary<string,string> d How can i make the code more readable such that the key of the dictionary is type of string and it is referring to title , and the value is type of string and it is referring to author ? That

Give names to Key and Value in C# Dictionary to improve code readability

由 北城余情 提交于 2020-12-04 18:07:59
问题 In C# struct, we can know clearly the purpose of a variable by it's name. For example, public struct Book { public string title; public string author; } Then, i know b.title is a type of string and it's referring to title. However in C# dictionary, we can only specify the type Dictionary<string,string> d How can i make the code more readable such that the key of the dictionary is type of string and it is referring to title , and the value is type of string and it is referring to author ? That

Give names to Key and Value in C# Dictionary to improve code readability

由 拈花ヽ惹草 提交于 2020-12-04 18:07:50
问题 In C# struct, we can know clearly the purpose of a variable by it's name. For example, public struct Book { public string title; public string author; } Then, i know b.title is a type of string and it's referring to title. However in C# dictionary, we can only specify the type Dictionary<string,string> d How can i make the code more readable such that the key of the dictionary is type of string and it is referring to title , and the value is type of string and it is referring to author ? That

阿里云轻量级服务器安装mysql5.7

由 北城余情 提交于 2020-12-04 18:02:15
转载至博客：https://www.cnblogs.com/bigbrotherer/p/7241845.html <我的是阿里云轻量级的服务器，即学生机，系统是centos7的> 在CentOS中默认安装有MariaDB，这个是MySQL的分支，但为了需要，还是要在系统中安装MySQL，而且安装完成之后可以直接覆盖掉MariaDB。 1 下载并安装MySQL官方的 Yum Repository [root@localhost ~]# wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm 使用上面的命令就直接下载了安装用的Yum Repository，大概25KB的样子，然后就可以直接yum安装了。 [root@localhost ~]# yum -y install mysql57-community-release-el7-10.noarch.rpm 之后就开始安装MySQL服务器。 [root@localhost ~]# yum -y install mysql-community-server 这步可能会花些时间，安装完成后就会覆盖掉之前的mariadb。 至此MySQL就安装完成了，然后是对MySQL的一些设置。 2 MySQL数据库设置 首先启动MySQL
订阅 dictionary