For example, the collaborative process has been described as the subroutine control structure, in many procedures are very useful. 例如，被称之为协同程序的子程序控制结构，在许多程序中都是很有用的。
Function call a general form said earlier, in the proceedings by calling the function to perform the function of its process and other similar language subroutine calls. 函数调用的一般形式前面已经说过，在程序中是通过对函数的调用来执行函数体的，其过程与其它语言的子程序调用相似。
