Pyomo Constraint：使用决策变量进行比较的条件约束

如何解决Pyomo Constraint：使用决策变量进行比较的条件约束

def Departure_Time(model,I):
        if I==0:
            return (model.Dept_Time_P[I] == Tar_Dept_Date)
        elif value(model.A[I] - floor(model.A[I]) + model.Cargo1[I]) < value(model.Work_end_time1[I]):
            return (model.Dept_Time_P[I] == formula1)
        elif value(model.Work_start_time1[I]) > value(model.A[I] - floor(model.A[I])):
            return (model.Dept_Time_P[I] == formula2)
        elif value(model.A[I] - floor(model.A[I])) > value(model.Work_end_time1[I]):
            return (model.Dept_Time_P[I] == formula3)
        elif value(model.A[I] - floor(model.A[I])) < value(model.Work_end_time1[I]):
            return (model.Dept_Time_P[I] == formula4)


    model.Dept_Time_P = Var(model.I,within=NonNegativeReals,initialize=0)
    model.c3 = Constraint(model.I,rule = Departure_Time)

model.A 是一个决策变量。因此，当我运行此约束时，它不会抛出任何错误，而是只为所有 I 获取第一个 elif 约束，并为除 model.Dept_Time_P[I] == formula1

之外的所有内容返回 I = 0

有没有办法使用比较决策变量来编写约束。

PS：model.Cargo1、model.Work_end_time1 和 model.Work_start_time1 是参数