一个gb2312转utf8代码。用于比如嵌入式通信是2312.又可能有网页功能，此时中文数据就会乱码。可用此程序修正。(A GB2312 turn utf8 code. For example, for example, embedded communication is 2312. and may have web functionality, and Chinese data will be in chaos. You can use this program to fix it.)