从0到9中随机生成8位数字,同批次的流水码不重复代码,CSharp代码库,德仔网

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【CSharp】从0到9中随机生成8位数字,同批次的流水码不重复
作者:Dezai.CN / 发布于2011/7/7/ 551
<div><span style="color: rgb(0,0,255)">private</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">static</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">char</span><span style="color: rgb(0,0,0)">[] constant </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> { </span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(128,0,0)">0</span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(0,0,0)">, </span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(128,0,0)">1</span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(0,0,0)">, </span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(128,0,0)">2</span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(0,0,0)">, </span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(128,0,0)">3</span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(0,0,0)">, </span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(128,0,0)">4</span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(0,0,0)">, </span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(128,0,0)">5</span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(0,0,0)">, </span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(128,0,0)">6</span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(0,0,0)">, </span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(128,0,0)">7</span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(0,0,0)">, </span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(128,0,0)">8</span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(0,0,0)">, </span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(128,0,0)">9</span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(0,0,0)"> };
</span><span style="color: rgb(0,0,255)">static</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">void</span><span style="color: rgb(0,0,0)"> Main(</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)">[] args)
 {
 </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)">[] AllID </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)">[</span><span style="color: rgb(128,0,128)">100</span><span style="color: rgb(0,0,0)">]; </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">存放所有已经生成的流水号</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> GenerateRandomNumber(</span><span style="color: rgb(128,0,128)">100</span><span style="color: rgb(0,0,0)">, AllID);
 </span><span style="color: rgb(0,0,255)">for</span><span style="color: rgb(0,0,0)"> (</span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> i </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">; i </span><span style="color: rgb(0,0,0)"><</span><span style="color: rgb(0,0,0)"> AllID.Length; i</span><span style="color: rgb(0,0,0)">++</span><span style="color: rgb(0,0,0)">)
 Console.WriteLine(AllID[i]);

 Console.ReadLine();

 }

 </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">static</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">void</span><span style="color: rgb(0,0,0)"> GenerateRandomNumber(</span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> Length,</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)">[] P_AllID) </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">Length要的流水号个数，P_AllID存放生成的流水号</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> { 
 
 Random rd </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> Random();
 </span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> Num</span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">;

 </span><span style="color: rgb(0,0,255)">do</span><span style="color: rgb(0,0,0)">
 {
 System.Text.StringBuilder newRandom </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> System.Text.StringBuilder(</span><span style="color: rgb(128,0,128)">8</span><span style="color: rgb(0,0,0)">); </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">存放一个流水号</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)">
 </span><span style="color: rgb(0,0,255)">for</span><span style="color: rgb(0,0,0)"> (</span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> i </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">; i </span><span style="color: rgb(0,0,0)"><</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">8</span><span style="color: rgb(0,0,0)">; i</span><span style="color: rgb(0,0,0)">++</span><span style="color: rgb(0,0,0)">) </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">8位号码，是其他位数，改此即可</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> {
 newRandom.Append(constant[rd.Next(</span><span style="color: rgb(128,0,128)">10</span><span style="color: rgb(0,0,0)">)]);
 }

 </span><span style="color: rgb(0,0,255)">if</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(0,0,0)">!</span><span style="color: rgb(0,0,0)">IsExist(newRandom.ToString(),P_AllID,Num)) </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">如果该号还没生成，就加入数组P_AllID</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> P_AllID[Num</span><span style="color: rgb(0,0,0)">++</span><span style="color: rgb(0,0,0)">] </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> newRandom.ToString();

 } </span><span style="color: rgb(0,0,255)">while</span><span style="color: rgb(0,0,0)"> (</span><span style="color: rgb(0,0,0)">!</span><span style="color: rgb(0,0,0)">(Num </span><span style="color: rgb(0,0,0)">>=</span><span style="color: rgb(0,0,0)"> Length));

 
 }

 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">查找当前生成的流水号是否已经存在</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">static</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">bool</span><span style="color: rgb(0,0,0)"> IsExist(</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> CurrentID, </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)">[] P_AllID, </span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> CurrentLength) </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">CurrentLength指：数组P_AllID当前实际元素的个数</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> {
 </span><span style="color: rgb(0,0,255)">if</span><span style="color: rgb(0,0,0)"> (CurrentLength </span><span style="color: rgb(0,0,0)">==</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">)
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">false</span><span style="color: rgb(0,0,0)">;

 </span><span style="color: rgb(0,0,255)">for</span><span style="color: rgb(0,0,0)"> (</span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> x </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">; x </span><span style="color: rgb(0,0,0)"><</span><span style="color: rgb(0,0,0)"> CurrentLength;x</span><span style="color: rgb(0,0,0)">++</span><span style="color: rgb(0,0,0)">)
 </span><span style="color: rgb(0,0,255)">if</span><span style="color: rgb(0,0,0)"> (CurrentID </span><span style="color: rgb(0,0,0)">==</span><span style="color: rgb(0,0,0)"> P_AllID[x])
 {
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">true</span><span style="color: rgb(0,0,0)">;
 }

 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">false</span><span style="color: rgb(0,0,0)">;

 }
</span></div>
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