数据格式的转换，例如将数组的形式转化为字符串的格式，将字符串传到页面。-Data format conversion, for example in the form of an array converted to the format string, the string passed to the page.

EtherCAT中xml文件的logo图标转换 bmp转16进制字符串-EtherCAT in the xml file logo icon conversion bmp to hexadecimal string