在PCB设计中，布线是完成产品设计的重要步骤，可以说前面的准备工作都是为它而做的， 在整个PCB中，以布线的设计过程限定最高，技巧最细、工作量最大-In the PCB design, the wiring is an important step to complete product design, we can say the front of the preparatory work for it to do throughout the entire PCB wiring design process limited to the highest, finest skills, maximum workload