C # and JS random number generation method

The example of C # and JS random number generation is described in this paper. Share to everyone for your reference. Specific as follows:

1. C # generates a random number method:

The code is as follows:

Random rd = new random ();

Rd. Next (Low,high);

Description: Generates a random number of 70-100

The code is as follows:

Random rd = new random ();

Rd. Next (70,100);

2. js Random number method:

The code is as follows:

Math.ceil (Math.random () * (1 + high–low) + low)

Description: Generates a random number of 80-100

The code is as follows:

Math.ceil (Math.random () * (1 + 100–80) + 80)

Method One:

The code is as follows:

function Getrandomnum (Min,max)

{

var Range = max–min;

var Rand = Math.random ();

Return (Min + math.round (Rand * Range));

}

var num = getrandomnum (1,10);

alert (num);

Method Two:

The code is as follows:

var chars = [' 0′, ' 1′, ' 2′, ' 3′, ' 4′, ' 5′, ' 6′, ' 7′, ' 8′, ' 9′, ' A ', ' B ', ' C ', ' D ', ' E ', ' F ', ' G ', ' H ', ' I ', ' J ', ' K ', ' L ', ' M ', ' N ', ' O ', ' P ', ' Q ', ' R ', ' S ', ' T ', ' U ', ' V ', ' W ', ' X ', ' Y ', ' Z '];

function generatemixed (n) {

var res = "";

for (var i = 0; i < n; i + +) {

var id = math.ceil (math.random () *35);

Res + = Chars[id];

}

return res;

}

Add:

1.math.random (); The result is a random number between 0-1 (including 0, excluding 1)

2.math.floor (num); The parameter num is a numeric value and the function result is the integer portion of Num.

3.math.round (num); The parameter num is a numeric value and the function result is the integer after num is rounded.

4.Math: Mathematical object that provides mathematical calculations of the data.

5.math.random (); Returns a random number between 0 and 1 (including 0, excluding 1).

6.math.ceil (n); Returns the smallest integer greater than or equal to N.

With Math.ceil (Math.random () *10), a random integer of 1 to 10 is obtained, with a minimum probability of 0 being taken.

7.math.round (n); Returns the value of an integer after n rounding.

With Math.Round (Math.random ()), a random integer from 0 to 1 can be obtained evenly.

With Math.Round (Math.random () *10), a basic equalization can be obtained for random integers from 0 to 10, where the probability of obtaining a minimum of 0 and a maximum of 10 is less than half.

8.math.floor (n); Returns the largest integer less than or equal to N.

With Math.floor (Math.random () *10), a random integer from 0 to 9 can be obtained evenly.

I hope this article is helpful to everyone's C # programming.

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C # and JS random number generation method

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C # and JS random number generation method