为什么python中使用pulp库时,solve函数中不能调用autosolve函数
时间: 2024-05-03 16:21:23 浏览: 132
Pulp库中并没有名为autosolve的函数。可能您想要使用的是solverdir参数,该参数可以指定pulp使用的求解器的路径。例如:
```python
import pulp
my_lp_problem = pulp.LpProblem("My LP Problem", pulp.LpMinimize)
x = pulp.LpVariable('x', lowBound=0, cat='Continuous')
y = pulp.LpVariable('y', lowBound=0, cat='Continuous')
# Objective function
my_lp_problem += 4 * x + 3 * y
# Constraints
my_lp_problem += 2 * x + y >= 20
my_lp_problem += x + y <= 17
my_lp_problem += x >= 3
# Solve the problem using the solver in the specified directory
pulp_solver = pulp.COIN_CMD(path='path/to/solver')
my_lp_problem.solve(pulp_solver)
# Print the solution status
print("Status: ", pulp.LpStatus[my_lp_problem.status])
# Print the optimal value of the objective function
print("Optimal value: ", pulp.value(my_lp_problem.objective))
# Print the values of the decision variables
for variable in my_lp_problem.variables():
print(variable.name, "=", variable.value())
```
在这个例子中,我们使用了COIN-OR求解器,并通过solverdir参数指定了求解器的路径。如果您没有指定solverdir参数,pulp会尝试使用默认的求解器,但这可能会导致求解器无法找到或无法正常工作。
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