C# 數(shù)組

char[] letterArray = new char[5]; // Declare an array of 5 characters 

letterArray[0] = 'a'; 
letterArray[1] = 'e'; 
letterArray[2] = 'i'; 
letterArray[3] = 'o'; 
letterArray[4] = 'u'; 
Console.WriteLine (letterArray[1]); // e 

for (int i = 0; i < letterArray.Length; i++) {
    Console.Write (letterArray[i]); // aeiou 
}

char[] letterArray = new char[] {'a','e','i','o','u'}; 

char[] letterArray = {'a','e','i','o','u'}; 

int[] a = new int[1000]; 
Console.Write (a[123]); // 0 

struct Point { 
  public int X, Y; 
} 

Point[] a = new Point[1000]; 
int x = a[500].X; // 0 

class Point { 
  public int X, Y; 
} 

Point[] a = new Point[10]; 
int x = a[5].X; // Runtime error, NullReferenceException 

Point[] a = new Point[10]; 
for (int i = 0; i < a.Length; i++){ // Iterate i from 0 to 9
    a[i] = new Point();             // Set array element i with new point 
}

int[] myArray = null;