fig19_06.cpp

来自「经典vc教程的例子程序」· C++ 代码 · 共 41 行

// Fig. 19.6: fig19_06.cpp
// Demonstrating the string find functions
#include <iostream>
#include <string>
using namespace std;

int main()
{
   // compiler concatenates all parts into one string literal
   string s( "The values in any left subtree"
             "\nare less than the value in the"
             "\nparent node and the values in"
             "\nany right subtree are greater"
             "\nthan the value in the parent node" );
   
   // find "subtree" at locations 23 and 102
   cout << "Original string:\n" << s 
        << "\n\n(find) \"subtree\" was found at: " 
        << s.find( "subtree" ) 
        << "\n(rfind) \"subtree\" was found at: " 
        << s.rfind( "subtree" );

   // find 'p' in parent at locations 62 and 144
   cout << "\n(find_first_of) character from \"qpxz\" at: " 
        << s.find_first_of( "qpxz" ) 
        << "\n(find_last_of) character from \"qpxz\" at: " 
        << s.find_last_of( "qpxz" );
   
   // find 'b' at location 25 
   cout << "\n(find_first_not_of) first character not\n"
        << "   contained in \"heTv lusinodrpayft\": " 
        << s.find_first_not_of( "heTv lusinodrpayft" );
   
   // find '\n' at location 121
   cout << "\n(find_last_not_of) first character not\n"
        << "   contained in \"heTv lusinodrpayft\": " 
        << s.find_last_not_of( "heTv lusinodrpayft" ) << endl;

   return 0;
}