使用boost库生成随机数随机字符串

偏执的太偏执、 2022-08-21 07:53 227阅读 0赞

#include <iostream>
    #include <boost/random/random_device.hpp>
    #include "boost/random.hpp"
    #include "boost/generator_iterator.hpp"
    using namespace std;
    
    int randString() 
    {
        /*<< We first define the characters that we're going
             to allow.  This is pretty much just the characters
             on a standard keyboard.
        >>*/
        std::string chars(
            "abcdefghijklmnopqrstuvwxyz"
            "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
            "1234567890"
            "!@#$%^&*()"
            "`~-_=+[{]}\\|;:'\",<.>/? ");
        /*<< We use __random_device as a source of entropy, since we want
             passwords that are not predictable.
        >>*/
        boost::random::random_device rng;
        /*<< Finally we select 8 random characters from the
             string and print them to cout.
        >>*/
        boost::random::uniform_int_distribution<> index_dist(0, chars.size() - 1);
        for(int i = 0; i < 8; ++i) {
            std::cout << chars[index_dist(rng)];
        }
        std::cout << std::endl;
    }
    int main() 
    {
        cout<<"===============rand String==============="<<endl;
        randString();
    
    
        cout<<"===============rand number==============="<<endl;
          typedef boost::mt19937 RNGType;
          RNGType rng;
          rng.seed(time(NULL));
          boost::uniform_int<> one_to_six( 99999, 999999 );
          boost::variate_generator< RNGType, boost::uniform_int<> >
                        dice(rng, one_to_six);
          for ( int i = 0; i < 6; i++ ) 
          {
              int n  = dice();
              cout << n << endl;
         }
    }

使用boost库生成随机字符串 随机数，生成随机数还是比较方便，随机字符串倒没觉得比rand方便多少，反而麻烦