如何生成随机整数? [英] How do I generate a random int number?

问题描述

如何在 C# 中生成随机整数?

How do I generate a random integer in C#?

推荐答案

Random 类 用于创建随机数.(当然是伪随机.)

The Random class is used to create random numbers. (Pseudo-random that is of course.).

示例:

Random rnd = new Random();
int month  = rnd.Next(1, 13);  // creates a number between 1 and 12
int dice   = rnd.Next(1, 7);   // creates a number between 1 and 6
int card   = rnd.Next(52);     // creates a number between 0 and 51

如果您要创建多个随机数，您应该保留 Random 实例并重复使用它.如果您创建的新实例时间太近，它们将产生与随机生成器从系统时钟中生成种子相同的一系列随机数.

If you are going to create more than one random number, you should keep the Random instance and reuse it. If you create new instances too close in time, they will produce the same series of random numbers as the random generator is seeded from the system clock.

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