要从ArrayList中删除一系列元素,代码如下-
using System; using System.Collections; public class Demo { public static void Main(String[] args){ ArrayList list1 = new ArrayList(); list1.Add("A"); list1.Add("B"); list1.Add("C"); list1.Add("D"); list1.Add("E"); list1.Add("F"); list1.Add("G"); list1.Add("H"); list1.Add("I"); Console.WriteLine("Elements in ArrayList1..."); foreach (string res in list1){ Console.WriteLine(res); } ArrayList list2 = new ArrayList(); list2.Add("A"); list2.Add("B"); list2.Add("C"); list2.Add("D"); list2.Add("E"); list2.Add("F"); list2.Add("G"); list2.Add("H"); list2.Add("I"); Console.WriteLine("Elements in ArrayList2..."); foreach (string res in list2){ Console.WriteLine(res); } Console.WriteLine("Is ArrayList1 equal to ArrayList2? = "+list1.Equals(list2)); list2.RemoveRange(3, 2); Console.WriteLine("Elements in ArrayList2 after removing elements in a range..."); foreach (string res in list2){ Console.WriteLine(res); } } }
输出结果
这将产生以下输出-
Elements in ArrayList1... A B C D E F G H I Elements in ArrayList2... A B C D E F G H I Is ArrayList1 equal to ArrayList2? = False Elements in ArrayList2 after removing elements in a range... A B C F G H I
让我们看另一个例子-
using System; using System.Collections; public class Demo { public static void Main(String[] args){ ArrayList list1 = new ArrayList(); list1.Add("A"); list1.Add("B"); list1.Add("C"); list1.Add("D"); list1.Add("E"); list1.Add("F"); list1.Add("G"); list1.Add("H"); list1.Add("I"); Console.WriteLine("Elements in ArrayList1..."); foreach (string res in list1){ Console.WriteLine(res); } ArrayList list2 = new ArrayList(); list2.Add("One"); list2.Add("Two"); list2.Add("Three"); list2.Add("Four"); list2.Add("Five"); list2.Add("Six"); list2.Add("Seven"); Console.WriteLine("Elements in ArrayList2..."); foreach (string res in list2){ Console.WriteLine(res); } list2.RemoveRange(1, 6); Console.WriteLine("Elements in ArrayList2 after removing elements in a range..."); foreach (string res in list2){ Console.WriteLine(res); } } }
输出结果
这将产生以下输出-
Elements in ArrayList1... A B C D E F G H I Elements in ArrayList2... One Two Three Four Five Six Seven Elements in ArrayList2 after removing elements in a range... One