了解全自动洗衣机的工作流程、绘制起工作流程图。结合可编程控制器I/O 分配，编写全自动洗衣机的控制梯形图程序。-Understand fully automatic washing machine workflow, drawing from the work flow chart. Combination of programmable controller I/O distribution, preparation of the control ladder program of automatic washing machines.