Random Numbers in C++

最新推荐文章于 2022-06-26 23:47:17 发布

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最新推荐文章于 2022-06-26 23:47:17 发布

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文章标签： c/c++

原文链接：http://www.cnblogs.com/poission/p/10861147.html

本文详细介绍了如何在C++中使用rand()和srand()函数生成随机数，包括设置种子、生成伪随机数的过程，并提供了完整的代码示例。

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#include <iostream>
#include <ctime> #include <cstdlib> using namespace std; int main () { int i,j; // set the seed  srand( (unsigned)time( NULL ) ); // generate 10 random numbers.  for( i = 0; i < 10; i++ ) { // generate actual random number j = rand(); cout <<" Random Number : " << j << endl; } return 0; }


There are many cases where you will wish to generate a random number. 
There are actually two functions you will need to know about random number generation. 
The first is rand(), this function will only return a pseudo random number. 
The way to fix this is to first call the srand() function.

https://www.tutorialspoint.com/cplusplus/cpp_numbers.htm