在 C# 中检查数组是否为只读
csharpserver side programmingprogramming更新于 2025/9/13 19:27:00
要检查数组是否为只读，请尝试以下代码 −
示例
using System;
public class Demo {
public static void Main(){
string[] products = new string[] { };
Console.WriteLine("One or more planets begin with 'E'? = {0}",
Array.Exists(products, ele => ele.StartsWith("E")));
Console.WriteLine("Is the array having fixed size? = " + products.IsFixedSize);
Console.WriteLine("Is the array read only? = " + products.IsReadOnly);
}
}
输出
这将产生以下代码 −
One or more planets begin with 'E'? = False Is the array having fixed size? = True Is the array read only? = False
示例
让我们看另一个例子 −
using System;
public class Demo {
public static void Main(){
string[] products = { "Mobiles", "Laptop", "Watches", "Books" };
Console.WriteLine("Products list...");
foreach(string s in products){
Console.WriteLine(s);
}
Console.WriteLine("
One or more products begin with the letter 'C'? = {0}",
Array.Exists(products, ele => ele.StartsWith("C")));
Console.WriteLine("One or more planets begin with 'D'? = {0}",
Array.Exists(products, ele => ele.StartsWith("D")));
Console.WriteLine("One or more products begin with the letter 'T'? = {0}",
Array.Exists(products, ele => ele.StartsWith("T")));
Console.WriteLine("One or more planets begin with 'E'? = {0}",
Array.Exists(products, ele => ele.StartsWith("E")));
Console.WriteLine("Is the array read only? = " + products.IsReadOnly);
}
}
输出
这将产生以下代码 −
Products list... Mobiles Laptop Watches Books One or more products begin with the letter 'C'? = False One or more planets begin with 'D'? = False One or more products begin with the letter 'T'? = False One or more planets begin with 'E'? = False Is the array read only? = False
