C # Random Number class

usingSystem;namespacedotnet.utilities{ Public classbaserandom{ Public Static intminimum=100000; Public Static intMaximal=999999; Public Static intRandomlength=6;Private Static stringrandomstring="0123456789ABCDEFGHIJKMLNOPQRSTUVWXYZ";Private StaticRandom random=NewRandom (DateTime.Now.Second);#regionpublic static string Getrandomstring () Public Static stringgetrandomstring () {stringReturnvalue=string. Empty; for(intI=0; i<randomlength;i++){intR=random.next (0, randomstring.length-1); ReturnValue+=randomstring[r];}returnreturnvalue;}#regionpublic static int Getrandom () Public Static intGetrandom () {returnRandom.next (minimum,maximal);}#endregion#regionpublic static int getrandom (int minimum,int maximal) Public Static intGetrandom (intMinimumintmaximal) {returnRandom.next (minimum,maximal);}#endregion}}

usingSystem;namespacedotnet.utilities{///generating pseudo-random numbers using the random class Public classrandomhelper{//Random Number ObjectPrivateRandom _random;#regionconstructor function PublicRandomhelper () {//Assigning a value to a random number object This. _random=NewRandom ();}#endregion#regionGenerates a random integer of a specified range Public intGetrandomint (intMinnum,intmaxnum) {return  This. _random. Next (Minnum,intmaxnum);}#endregion#regionGenerate a random decimal number from 0.0 to 1.0 Public Doublegetrandomdouble () {return  This. _random. Nextdouble ();}#endregion#region对一个数组进行随机排序 Public voidGetrandomarray<t>(t[] arr) {intCount=arr. Length;//Start swapping for(intI=0; i<count;i++){//generate two random number positionsintRandomnum1=getrandomint (0, arr. Length);intRandomnum2=getrandomint (0, arr. Length);//Defining temporary variablesT temp;//Exchange values for two random number positionstemp =Arr[randomnum1]arr[randomnum1]=Arr[randomnum2];arr[randomnum2]=temp;}}#endregion}}

usingSystem;namespacedotnet.utilities{ Public classrandomoperate{//One: Randomly generated non-repeating numeric stringsPrivate intrep=0; Public stringGeneratecheckcodenum (intCodecount) {stringStr=string. Empty;Longnum2=datetime.now.ticks+ This. Rep; This. rep++; Random Random=NewRandom ((int)(((ULONG) num2) &0xffffffffL))| ((int) (num2>> This. Rep )); for(intI=0; i<codecount;i++){intnum=Random. Next (); Str=str+ ((Char)(0x30+((ushort) (num%Ten)))). ToString ();}returnstr;}//method Two: randomly generated strings (mixed numbers and letters) Public stringGeneratecheckcode (intCodecount) {stringStr=string. Empty;Longnum2=datetime.now.ticks+ This. Rep; This. rep++; Random Random=NewRandom ((int)(((ULONG) num2) &AMP;0FFFFFFFFL) | ((int) (num2>> This. Rep )); for(intI=0; i<codecount;i++){Charch;intnum=Random. Next ();if((num%2)==0{ch=(Char) (Ox30+ (ushort) (num%Ten)));}Else{ch=(Char)(0x41+((ushort) (num%0x1a)));} STR=str+Ch. ToString ();}returnstr;}#regionPrivate stringGetrandomcode (stringAllchar,intCodecount) {string[] Allchararray=allchar.split (',');stringRandomcode="";inttemp=-1; Random Rand=NewRandom (); for(intI=0; i<codecount;i++){if(Temp!=-1) {Rand-NewRandom (temp*i* (int) (DateTime.Now.Ticks)) ;}intT=rand. Next (allchararray.length-1); while(temp==t) {T=rand. Next (allchararray.length-1);} Temp=T; Randomcode+=allchararray[t];}returnRandomcode;}#endregion}}

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C # Random Number class