示波器的使用教程，非常适合硬件工程师学习。在调试高速电路板的时候，一台示波器是你的好帮手。没有它你什么也干不了。花点时间学习一下示波器吧。-The use of oscilloscope tutorial, very suitable for hardware engineers to learn. In debugging time when high-speed circuit boards, one oscilloscope is your good helper. Without it