in programming, instructions which determine conditional jumps are often refer red to as control instruction, and the time sequence of execution of instruction s is called the flow of control 在程序设计中,确定条件转移的指令通常称作控制指令,而指令执行的时间序列叫控制流。
currently, ladder diagram is one of main plc programming languages . function of ladder diagram instruction is implemented with cpu through the interpretation and execution of instructions 目前,可编程控制器一般使用梯形图作为其编程语言,cpu完成对梯形图指令解释和执行。
some would argue that all programs are eventually reduced to a procedural execution of instructions, and so every oop program, no matter how purely implemented it is, contains procedural code in its functions a . k . a . methods and in the code that creates the first object that do the rest of the work 有人可能争论说所有程序最终都归结为指令的过程型执行,因此无论oop程序实现得有多纯,每个oop程序都在其函数(也称为方法)和创建第一个对象(该对象做其余工作)的代码中包含过程型代码。