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2_18447_1320355_21214.cpp
2_18447_1320355_21214.cpp(10) : error C2668: “log10” : 对重载函数的调用不明确
        \include\math.h(614): 可能是“long double log10(long double)”
        \include\math.h(566): 或       “float log10(float)”
        \include\math.h(194): 或       “double log10(double)”
        试图匹配参数列表“(__int64)”时
2_18447_1320355_21214.cpp(13) : error C2666: “pow” : 7 个重载有相似的转换
        \include\math.h(620): 可能是“long double pow(long double,int)”
        \include\math.h(618): 或       “long double pow(long double,long double)”
        \include\math.h(572): 或       “float pow(float,int)”
        \include\math.h(570): 或       “float pow(float,float)”
        \include\math.h(534): 或       “double pow(int,int)”
        \include\math.h(532): 或       “double pow(double,int)”
        \include\math.h(195): 或       “double pow(double,double)”
        试图匹配参数列表“(int, double)”时