Array declaration:
int[ ] numble；
Create an array:
int[ ] numble=new int [5];
Animal[ ] zoo=new Animal[100];
Animal is a class that must be declared before use;
Initialize the class:
Animal[ ] zoo = new Animal[3]{
new Animal("Wolf"),
new Animal("Lion"),
new Animal("Cat")
};
//The array itself is an object, you must use new to create an instance of the array
Array declaration and initialization:
string[ ] msg = {"Hello","Bye","How are you"};
string s1 = msg[2];
string s2 = msg[3];//This will cause the overflow number of characters to cross the boundary;
foreach is similar to for, traversing the entire number rent. foreach loops automatically, reading out the array elements with indices from 0 to length
* does not require us to set loop conditions and iteration variables, simpler and safer
The element value read by *foreach is read-only and cannot be modified;
grammar:
int[ ] numble = {1,2,3};
foreach (int x in numble ){
Console.writeline(x);
}
Array methods (functions)
Sort sorts the elements of the number rent
Clear sets the element to the default output value of 0 or null
Clone creates a rental copy
GetLength Gets the number of elements in the specified dimension of the array
IndexOf the index of the first occurrence of a value in the array