Data format of data exchange in network data transmission

The present invention relates to a data format for data interchange in the network data transmission. In the order to make data can implement transmission in network and implement interprocessor communication and have the search convenience of structure, the invention provides the data format for resolving the above-mentioned problems. The format of data interchange combines with advantages of variable-length character flow and structure variable, and in one data packet the message packet head, data item description and data contents can be included, and one message packet can have several search modes, according to the key value search and data item number the segment data can be conveniently searched.