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    技术2022-05-19  22

     

     

    #include <iostream> #include <string> #include <cctype> using namespace std; int main(int argc, char* argv[]) { string s("Hello World!!!"); string::size_type punct_cnt = 0; for (string::size_type index = 0; index != s.size(); ++index) { if (ispunct(s[index])) ++punct_cnt; } cout << punct_cnt << " puctuation characters in " << s << endl; return 0; }


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