随着城市车辆的增多，道路情况变得复杂，如何对道路车流量进行监控，对统计、预测城市道路交通情况至关重要，同时这也是对城市道路运行情况合理调度的重要依据。本代码提供了一种车流量检测额方法。-With the increase of urban vehicles, road conditions become complicated, and how to monitor traffic on the road, on statistics, forecasts urban road traffic

建模大赛城市表层土壤重金属污染分析试题图形与函数绘制-Modeling Contest heavy metal pollution of urban topsoil graphics and function draws questions