下載 https://www.anaconda.com/download

pip install pyomo

conda install glpk

以管理員身份運行

?python 'C:\Program Files\IBM\ILOG\CPLEX_Studio221\python\setup.py' install

測試代碼

from pyomo.environ import *

from pyomo.opt import SolverFactory

model = ConcreteModel()

model.x = Var( range(2) )

model.con = ConstraintList()

model.con.add( model.x[0] >= 0)

model.con.add( model.x[1] >= 0)

model.con.add( model.x[0] <= 4 )

model.con.add( 2*model.x[1] <= 12 )

model.con.add( 3*model.x[0] + 2 * model.x[1] <= 18)

model.obj = Objective(expr= 3 * model.x[0] + 5*model.x[1], sense = maximize) # minimize

result = SolverFactory('glpk').solve(model)

# result=SolverFactory('cplex_direct').solve(model)

# result = SolverFactory('gurobi').solve(model)

print('\n')

print('***********************************')

print(model.pprint())

print('***********************************')

print ( f'最優(yōu)解是 {value( model.obj )}' )

print('其中，每個變量的值：')

for i in range(2):

??print( f'x[{i}] = {value(model.x[i])}')

print('***********************************')

print('\n')