C#中的Array.TrueForAll()方法
C#中的Array.TrueForAll()方法用于确定数组中的每个元素是否与指定谓词定义的条件匹配。
语法
以下是语法-
public static bool TrueForAll<T> (T[] array, Predicate<T> match);
示例
现在让我们看一个实现Array.TrueForAll()方法的示例-
using System;
public class Demo{
public static void Main(){
Console.WriteLine("Array elements...");
string[] arr = { "bike", "bus"};
for (int i = 0; i < arr.Length; i++){
Console.Write("{0} ", arr[i]);
}
Console.WriteLine();
int lastIndex = Array.LastIndexOf(arr, "bus");
Console.WriteLine("Last Ocurrence of element bus is at index = "+lastIndex);
bool res = Array.TrueForAll(arr, ele => ele.StartsWith("b",
StringComparison.Ordinal));
if (res)
Console.Write("数组中的每个元素都匹配指定谓词定义的条件。");
else
Console.Write("Eevery element in the array do not matche the conditions defined by the specified predicate");
}
}输出结果
这将产生以下输出-
Array elements... bike bus Last Ocurrence of element bus is at index = 1 Every element in the array matches the conditions defined by the specified predicate