通过串口助手要接受字符串或一组数据需要在单片机端开辟一个缓冲区，否则可能丢失数据。以下程序是较为通用的串口收发例程，开辟一个16字节的缓冲区，两个指针，一个存数指针，一个取数指针，两指针相等，证明没有新的接收数据。-To accept a string or a set of data through the serial port assistant on the microcontroller side to open up a buffer, or data may be lost. The following program is a universal serial transceiver routines, opening up a 16-byte buffer, two pointers, a store pointer, a fetch pointer, two pointers are equal, and that no new receive data.