This C# List Find tutorial demonstrates how to locate elements in a C# List using the Find, FindLast, FindAll, FindIndex, and FindLastIndex methods.
intindex=myList.FindIndex(a=>a.Contains("Tennis")); C# 以上,我们使用FindIndex()方法来获取元素的索引,该方法通过Contains()方法辅助查找特定的元素。 以下是完整的代码示例: 示例 usingSystem;usingSystem.Collections.Generic;publicclassProgram{publicstaticvoidMain(){List<string>myList=newList<stri...
List<string> strLoop =newList<string>(); List<string> strNew =newList<string>(); List<string> strOrderby =newList<string>(); List<string
load("Collections.List") load("Collections.Dictionary") load("Collections.Queue") load("Collections.Stack") load("Collections.HashSet") load("Collections.LinkedList") load("Collections.SortedDictionary") load("Collections.Linq") load("Convert") load("Math") load("Random") load("Text.StringBuilde...
Insert(0, "John Doe"); // Insert in the middle (index 1) listOfNames.Insert(1, "Jane Doe"); AddRange of Items listOfNames.AddRange(new string[] { "Jenna Doe", "Another Doe" }); Remove List<string> listOfNames = new List<string>() { "John Doe", "Jane Doe", "Joe Doe"...
Xamarin.Forms.Internals:As this mostly used list extension functions Foreach, FindIndex we can write our own extension function for this. public static void ForEach<T>(this IEnumerable<T> enumeration, Action<T> action) { foreach (T item in enumeration) ...
var indexOfCurrentWeekStartDate = calendar.FindIndex(p => p.CalendarDate == currentWeekStartDate.Date); var currentWeekDates = calendar.GetRange(indexOfCurrentWeekStartDate, 7).Select(p => new { p.CalendarDate }).ToList(); This will give you all 7 dates in the current week. Now let...
그만큼List.FindIndex()메서드는 제공된 술어를 충족하는 첫 번째 요소의 인덱스를 반환합니다. 조건을 만족하는 요소가 없으면FindIndex보고-1. 1 2 3 4
的索引intindex=Array.FindIndex(playerloop.subSystemList,v=>v.type==typeof(UnityEngine.PlayerLoop.Update));// 2. 将咱们的 loop 插入到 Update loop 中varupdateloop=playerloop.subSystemList[index];vartemp=updateloop.subSystemList.ToList();temp.Add(loop);updateloop.subSystemList=temp.ToArray();...
var v2 = Array.FindLastIndex(vals, x => x == 3); Console.WriteLine(v2); var positive = Array.FindAll(vals, x => x > 0); Console.WriteLine(string.Join(",", positive)); The array functions expect a predicate function, which is applied for all elements of the array. ...