rand在c++中应如何声明
#include<iostream>#include<cstdlib>#include<ctime>usingstd::cout;usingstd::endl;using...
#include <iostream>
#include <cstdlib>
#include <ctime>
using std::cout;
using std::endl;
using std::rand;
using std::srand;
using std::time;
int main() {
const int limit1 = 500; // Upper limit for on set of random values
const int limit2 = 31; // Upper limit for another set of values
cout << "First we will use the default sequence from rand().\n";
cout << "Three random integer from 0 to " << RAND_MAX << ": "
<< rand() << " " << rand() << " " << rand()<< endl;
cout << endl << "Now we will use a new seed for rand().\n";
srand(static_cast<unsigned int>(time(0))); // Set a new seed
cout << "Three random integer from 0 to " << RAND_MAX << ": "
<< rand() << " " << rand() << " " << rand()<< endl;
return 0;
}
六七八行在运功行中总是预示出错,这是怎么了 ,急啊!!! 展开
#include <cstdlib>
#include <ctime>
using std::cout;
using std::endl;
using std::rand;
using std::srand;
using std::time;
int main() {
const int limit1 = 500; // Upper limit for on set of random values
const int limit2 = 31; // Upper limit for another set of values
cout << "First we will use the default sequence from rand().\n";
cout << "Three random integer from 0 to " << RAND_MAX << ": "
<< rand() << " " << rand() << " " << rand()<< endl;
cout << endl << "Now we will use a new seed for rand().\n";
srand(static_cast<unsigned int>(time(0))); // Set a new seed
cout << "Three random integer from 0 to " << RAND_MAX << ": "
<< rand() << " " << rand() << " " << rand()<< endl;
return 0;
}
六七八行在运功行中总是预示出错,这是怎么了 ,急啊!!! 展开
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