Learn C # (index 2) C # (QQ: 249178521)
4. Index vs. array
· Comparison of indexes and arrays
W indexing can use non-integer parameters
W index can be overloaded
W index can be private
W index cannot have a REF / OUT type parameter
Struct Matrix
{
...
Public Double this [int in, int col]
{
Get {...}
Set {...}
}
Public row this [int in]
{
Get {...}
Set {...}
}
...
}
5. Index vs. attribute
· Comparison of indexes and attributes
W is only GET and SET statements
W No static index
§ can have static properties
W index is declared at the level of the class
§ Property is declared at the level of the field
Struct row
{
...
Public Double this [INT COL]
{
Get {...}
Set {...}
}
Public int LENGTH
{
Get {...}
}
...
}
Attributes and indexes can declare in the interface.
Interface Irow
{
Double this [int index] {get; set;}
INT longth {get;
}
6. Index vs. function
· Comparison of indexes and functions
W function can have no parameters
W function can have a VOID type return value
W index can only contain GET / SET statements
