使用C＃在一個範圍內產生一個隨機數

Question

我該如何去產生一個範圍內的隨機數？

Answer 1

您可以嘗試

Random r = new Random(); 
int rInt = r.Next(0, 100); //for ints 
int range = 100; 
double rDouble = r.NextDouble()* range; //for doubles 

看一看

Random Class，Random.Next Method (Int32, Int32)和Random.NextDouble Method

Answer 2

喜歡的東西：

var rnd = new Random(DateTime.Now.Millisecond); 
int ticks = rnd.Next(0, 3000); 

Answer 3

用途：

Random r = new Random(); 
int x= r.Next(10);//Max range 

Answer 4

除了從Random Class，產生整數和雙打，考慮：

• 堆棧溢出問題Generation of (pseudo) random constrained values of (U)Int64 and Decimal

• C# RandomProvider Class

Answer 5

試試下面的代碼。

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