(The network solution technology is to use a directed network graph to express the sequence of each office in a plan and the logical relationship with each other; then calculate the time parameters to find out the important routes and available maneuvering time in the plan; in accordance with certain optimization. Plan, continuously improve and optimize the plan arrangement, so that the plan can reach the overall optimization; and in the implementation process of the plan, through the inspection, control and adjustment to ensure the realization of the plan plan on schedule)