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【简答题】
有如下数列: 2,4/3,8/9.16/27,32/81 ..... 设计一个函数,实现计算该数列的前 n 项和, 并在主函数中调用该函数进行测试。 提示 :寻找数列各项的变化规律,并且避免 整除 的发生。
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