template<typename T> struct TFSS {     static const char* FMT; }; template<typename T> const char* TFSS<T>::FMT = "%s"; template<> struct TFSS<char> {     static const char* FMT; }; template<> const char* TFSS<char>::FMT = "%hu"; template<> struct TFSS<unsigned char> {     static const char* FMT; }; template<> const char* TFSS<unsigned char>::FMT = "%hd";   代码编译出错 error C2998: “const char *TFSS<char>::FMT”: 不能是模板定义 error C2998: “const char *TFSS<unsigned char>::FMT”: 不能是模板定义 修改成如下代码 template<typename T> struct TFSS {     static const char* FMT; }; template<typename T> const char* TFSS<T>::FMT = "%s"; template<> struct TFSS<char> {     static const char* FMT; }; const char* TFSS<char>::FMT = "%hu"; template<> struct TFSS<unsigned char> {     static const char* FMT; }; const char* TFSS<unsigned char>::FMT = "%hd";

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