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    3. 每次运行程序时都是相同的随机数

      时间:2023-06-05
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                本文介绍了每次运行程序时都是相同的随机数的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

                问题描述

                我每次运行游戏时输出的随机数都以相同的顺序输出.为什么会发生这种情况?

                My random numbers that output, output in the same sequence every time I run my game. Why is this happening?

                我有

                #include <cstdlib> 
                

                并使用它来生成随机数

                randomDiceRollComputer = 1 + rand() % 6;
                

                推荐答案

                你需要为你的随机数生成器做种子:

                You need to seed your random number generator:

                试着把它放在程序的开头:

                Try putting this at the beginning of the program:

                srand ( time(NULL) );
                

                请注意,您需要#include .

                这里的想法是在每次启动程序时为 RNG 设置不同的编号.通过使用时间作为种子,每次启动程序时您都会得到不同的数字.

                The idea here is to seed the RNG with a different number each time you launch the program. By using time as the seed, you get a different number each time you launch the program.

                这篇关于每次运行程序时都是相同的随机数的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持跟版网!

                上一篇:std::mt19937 需要预热吗? 下一篇:rand() 生成相同的数字——即使在我的主要内容中有 srand(time(NULL)) !

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