实现串口自动搜索；设置串口的数据位、停止位、波特率、检验位；能够通过串口发送、接收字符串-To achieve the automatic search of the serial port to set the serial data bits, stop bits, baud rate, parity bit can be sent through the serial port to receive the string

实现输入文字的搜索功能，输入字符自动匹配字符串，实现搜索。-Achieving the search function of the input text, the input character automatically matching strings, search.