中文说明：
分析流量时，程序从文件“trans.txt”读取数据，其中第一列是时间，另一列是流量。读取数据输出后，计划回程一分钟（可以增加分钟数）和交通直方图分布。
English Description：
When analyzing traffic, the program reads data from the file "trans. TXT", in which the first column is time and the other column is traffic. After reading the data output, plan to return for one minute (the number of minutes can be increased) and traffic histogram distribution