入門計劃->使用(C++庫)istringstream輸入(格式化) (轉)

入門計劃->使用(C++庫)istringstream輸入(格式化) (轉)[@more@]

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//awzzz@2002 //計劃->使用(C++庫)istringstream輸入(格式化) //APO->using istringstream. //accnce project of using istringstream.(c++ iostream library) /* Reference: Description istringstream class provides an interface to manipulate strings as if they were input streams. The s of this class mantain internally a pointer to a stringbuf object that can be obtained/modified by calling member ruf. This streambuf-derived object stores a sequence of characters (string) that can be obtained/modified by calling member str. */ //使用(C++庫)istringstream輸入(格式化) //simple example #include #include #include using namespace std; void test() { { //istringstream iss; //iss.str("#123 1.23 aaa ,zzz kk,k oo.jjj"); istringstream iss("#123 1.23 aaa ,zzz kk,k oo.jjj"); cout << iss.str() << endl; char ch; iss >> ch; cout << ch << endl; int i; iss >> i; cout << i << endl; float f; iss >> f; cout << f << endl; char buf[1024]; iss >> buf; cout << buf << endl; iss.ignore(100, ','); iss >> buf; cout << buf << endl; } } int main(int argc, char* argv[]) { test(); return 0; }