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我尝试在这里编写代码并获得正确的 Fitness_point,但在循环之后,结果一直显示为 0。它首先显示 StopIteration,所以我在那里写了 try 和 except,但结果仍然是错误的。我是这里的新手,我应该怎么办?请帮忙..

population={'list_1':[0,2,3,4],'list_2':[2,0,4,1],'list_3':[1,6,0,8],'list_4':[3,5,6,0]}

item = [3,4,2,1]

def get_fitness(items):
    g= iter(items)
    temp=[]
    fitness_point=0
    try:
        for i in items:
            if i != items[3]:
                temp=population['list_{}'.format(i)]
                fitness_point+=temp[g.__next__()-1]
                print(fitness_point)
    except GeneratorExit:
        return 'eror'

return fitness_point

print(get_fitness(item))
4

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