Suppose you are given a string and you want to count how many times each letters appears. There are several ways you do it: You could create 26 variables, one for each letter of the alphabet. Then you could traverse the string and, for each character…
Dictionaries A dictionary is like a list, but more general. In a list, the indices have to be integers; in a dictionary they can be (almost) any type.You can think of a dictionary as a mapping between a set of indices (which are called keys) and a se…
本篇文章会向大家实例讲述以下内容: 将数组转换为List 将List转换为数组 将数组转换为Dictionary 将Dictionary 转换为数组 将List转换为Dictionary 将Dictionary转换为List 首先这里定义了一个"Student"的类,它有三个自动实现属性. class Student { public int Id { get; set; } public string Name { get; set; } public string Gender {…
Linq在Array,List,Dictionary中的应用 今天在实际工作中需要对array,list,dictionary进行排序,试一试linq,发现非常好用,代码如下: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Text.RegularExpressions; namespace Test { class Program { stat…
There is a new alien language which uses the latin alphabet. However, the order among letters are unknown to you. You receive a list of words from the dictionary, where words are sorted lexicographically by the rules of this new language. Derive the…
