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法律研究检查 ArrayList 是否在 C# 中是只读的
要检查 ArrayList 是否为只读的，代码如下 -
示例
using System;
using System.Collections;
public class Demo {
public static void Main(String[] args) {
ArrayList list1 = new ArrayList();
list1.Add("ABC");
list1.Add("BCD");
list1.Add("CDE");
list1.Add("DEF");
list1.Add("EFG");
list1.Add("GHI");
list1.Add("HIJ");
list1.Add("IJK");
list1.Add("JKL");
list1.Add("KLM");
Console.WriteLine("Elements in ArrayList...");
foreach (string res in list1) {
Console.WriteLine(res);
}
ArrayList list = ArrayList.Synchronized(list1);
Console.WriteLine("Is ArrayList synchronized? = "+list.IsSynchronized);
ArrayList list2 = ArrayList.FixedSize(list1);
Console.WriteLine("Is ArrayList have a fixed size? = "+list2.IsFixedSize);
Console.WriteLine("Is the ArrayList read-only? = "+list1.IsReadOnly);
}
}输出
这将产生以下输出 -
Elements in ArrayList... ABC BCD CDE DEF EFG GHI HIJ IJK JKL KLM Is ArrayList synchronized? = True Is ArrayList have a fixed size? = True Is the ArrayList read-only? = False
示例
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");
Console.WriteLine("Elements in ArrayList1...");
foreach (string res in list1) {
Console.WriteLine(res);
}
Console.WriteLine("Is ArrayList1 synchronized? = "+list1.IsSynchronized);
Console.WriteLine("Is the ArrayList1 read-only? = "+list1.IsReadOnly);
ArrayList list2 = new ArrayList();
list2.Add("A");
list2.Add("B");
list2.Add("C");
list2.Add("D");
list2.Add("E");
list2.Add("F");
Console.WriteLine("Elements in ArrayList2...");
foreach (string res in list2) {
Console.WriteLine(res);
}
Console.WriteLine("Is ArrayList synchronized? = "+list2.IsSynchronized);
Console.WriteLine("Is the ArrayList2 read-only? = "+list2.IsReadOnly);
}
}输出
这将产生以下输出 -
Elements in ArrayList1... A B C D E F Is ArrayList1 synchronized? = False Is the ArrayList1 read-only? = False Elements in ArrayList2... A B C D E F Is ArrayList synchronized? = False Is the ArrayList2 read-only? = False
更新日期： 06-12-2019
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