Let’s assume we want to use the value of variable z, obtained as a result of the following calculations: x = f1(a,b); y = f2(c,d); z = f3(x,y), where a, b, c, d are the parameters of functions, f1, f2, f3 are functions (arithmetic, logical, comparison, or actions), and x, y, z are calculated values.
The process of building an expression in the constructor will look like this:
z = f3(f1(a,b), f2(c,d))
That is, just as we write expressions in algebra. In the constructor, we will sequentially perform the following actions:
- Select the function (operation) f3 from the constructor.
- As the first argument of the function f3, select the function f1.
- As the second argument of the function f3, select the function f2.
- Set the values of the first and second arguments for function f1 - the values of parameters «a» and «b».
- Set the values of the first and second arguments for function f2 - the values of parameters «c» and «d».
Обзор
Инструменты контента