C ++ 11引入了foreach循环以遍历每个元素。这是一个例子-
#include <iostream> using namespace std; int main() { int myArr[] = { 99, 15, 67 }; //foreach循环 for (int ele : myArr) cout << ele << endl; }
输出结果
99 15 67
让我们来看一个C#中的foreach示例。它遍历集合中的项目-
using System; namespace ArrayApplication { class MyArray { static void Main(string[] args) { int [] n = new int[10]; /* n is an array of 10 integers */ for ( int i = 0; i < 10; i++ ) { n[i] = i + 100; } /* output each array element's value */ foreach (int j in n ) { int i = j-100; Console.WriteLine("Element[{0}] = {1}", i, j); } Console.ReadKey(); } } }
输出结果
Element[0] = 100 Element[1] = 101 Element[2] = 102 Element[3] = 103 Element[4] = 104 Element[5] = 105 Element[6] = 106 Element[7] = 107 Element[8] = 108 Element[9] = 109