std::string
中有CString::mid()
的等效功能吗?
答案 0 :(得分:1)
等效于std::string::substr
,具有以下界面:
basic_string substr( size_type pos = 0, size_type count = npos ) const;
constexpr basic_string substr( size_type pos = 0, size_type count = npos ) const;
您可以像这样使用它:
std::string str = "0123456789abcdefghij";
// returns [pos, size())
std::string sub1 = str.substr(10);
std::cout << sub1 << '\n';
// returns [pos, pos+count)
std::string sub2 = str.substr(5, 3);