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0_0_15324257_3555.cpp
0_0_15324257_3555.cpp(10) : error C2668: “log10”: 对重载函数的调用不明确
        VC2013\INCLUDE\math.h(1211): 可能是“long double log10(long double) throw()”
        VC2013\INCLUDE\math.h(1095): 或       “float log10(float) throw()”
        VC2013\INCLUDE\math.h(502): 或       “double log10(double)”
        尝试匹配参数列表“(int)”时
0_0_15324257_3555.cpp(10) : error C2661: “pow”: 没有重载函数接受 1 个参数