产生由英文和数字组成的指定个数的随机数(转)

博客提供了一个生成由英文和数字组成的指定个数随机数的代码。定义了GetRandomCode方法,通过数组存储数字和字母,利用Random类随机选取元素,最终用StringBuilder拼接成指定个数的随机英数字符串。
ExpandedBlockStart.gifContractedBlock.gif        /**//// <summary> 
InBlock.gif        
/// 产生由英文和数字组成的指定个数的随机数 
InBlock.gif        
/// </summary> 
InBlock.gif        
/// <param name="number">产生随机数的个数</param> 
ExpandedBlockEnd.gif        
/// <returns>指定个数的随机英数字符串</returns> 

None.gif        public static string GetRandomCode(int number) 
ExpandedBlockStart.gifContractedBlock.gif        
dot.gif
ExpandedSubBlockStart.gifContractedSubBlock.gif            
string[] arrList = new string[] dot.gif{"0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F","G"
ExpandedSubBlockEnd.gif                                                
"H","I","J","K","L","M","N","O","P","Q","R","S","T","U","W","X","Y","Z"}
 ; 
InBlock.gif            StringBuilder sb 
= new StringBuilder("") ; 
InBlock.gif            Random random 
= new Random() ; 
InBlock.gif 
InBlock.gif            
forint i = 0 ; i < number ; i++ ) 
ExpandedSubBlockStart.gifContractedSubBlock.gif            
dot.gif
InBlock.gif                sb.Append(arrList[(
int)random.Next(0,arrList.Length)]) ; 
ExpandedSubBlockEnd.gif            }
 
InBlock.gif 
InBlock.gif            
return sb.ToString() ; 
ExpandedBlockEnd.gif        }

转载于:https://www.cnblogs.com/ccsonline/archive/2005/08/23/220643.html

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