250963_0_8979.cpp 250963_0_8979.cpp(15) : error C2668: “log10” : 对重载函数的调用不明确 VC\include\math.h(614): 可能是“long double log10(long double)” VC\include\math.h(566): 或 “float log10(float)” VC\include\math.h(194): 或 “double log10(double)” 试图匹配参数列表“(int)”时