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问题的提出:编写一个长途电话计费程序,计费规则是每6秒钟0.06元,要求能输入发话地、收话地,输出话费。-Of the problem: the preparation of a long-distance telephone billing procedures, billing rules is 0.06 yuan per 6 seconds, the requirements to enter the caller to close, then, the output charges.