Contract programming in. NET 4.0

Contract programming is not a new programming methodology. There is a long time since the C + +. Microsoft formally introduced the Contract programming library in. NET 4.0. Bloggers think that contract programming is a pretty good programming idea that every developer should master. Not only does it make the developer's mind clearer, but it also helps to improve program performance. It is worth mentioning that it also has great benefits for concurrent programming.

Let's take a look at a simple code example that doesn't use contract programming.

. NET code Samples
public class Rationalnumber
{
private int

numberator;
private int denominator;

Public rationalnumber (int

numberator, int denominator)
{
This.numberator = Numberator;
　　

This.denominator = denominator;
}

public int Denominator
　　

{
Get
{
return this.denominator;
}
　　

}
}