using namespace std string

想要了解全部接口可以参考:std::stringstring类的常用接口但在c 中

h> using namespace std; struct mystruct { mystruct* pself

algorithm>using namespace std;bool isfriend(string a, string b)

h> #include istream> using namespace std; vid ma

h:#include string>using namespacestd;classteacher{public://无参

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