降雨后，水文者需要收集降雨资料，然后分析这阵雨的特征，但计算量比较复杂。本程序只需要用户输入降雨数据，然后自动等时距计算雨量和画各种降雨特征图-After rainfall, hydrologist need to collect rainfall data and then analyze the characteristics of the showers, but the calculation is more complicated. This procedure only requir