我想要一些 javascript,它可以让我生成 4 个随机数,这些数字加起来等于某个值,例如
if
max = 20
then
num1 = 4
num2 = 4
num3 = 7
num4 = 5
or
max = 36
then
num1 = 12
num2 = 5
num3 = 9
num4 = 10
到目前为止我所拥有的是...
var maxNum = 20;
var quarter;
var lowlimit;
var upplimit;
var num1 = 1000;
var num2 = 1000;
var num3 = 1000;
var num4 = 1000;
var sumnum = num1+num2+num3+num4;
quarter = maxNum * 0.25;
lowlimit = base - (base * 0.5);
upplimit = base + (base * 0.5);
if(sumnum != maxNum){
num1 = Math.floor(Math.random()*(upplimit-lowlimit+1)+lowlimit);
num2 = Math.floor(Math.random()*(upplimit-lowlimit+1)+lowlimit);
num3 = Math.floor(Math.random()*(upplimit-lowlimit+1)+lowlimit);
num4 = Math.floor(Math.random()*(upplimit-lowlimit+1)+lowlimit);
}
此代码将创建四个整数,其总和达到最大数并且不会为零
var max = 36;
var r1 = randombetween(1, max-3);
var r2 = randombetween(1, max-2-r1);
var r3 = randombetween(1, max-1-r1-r2);
var r4 = max - r1 - r2 - r3;
function randombetween(min, max) {
return Math.floor(Math.random()*(max-min+1)+min);
}
编辑:这将创建thecount
总和为的整数个数max
并将它们返回到一个数组中(使用randombetween
上面的函数)
function generate(max, thecount) {
var r = [];
var currsum = 0;
for(var i=0; i<thecount-1; i++) {
r[i] = randombetween(1, max-(thecount-i-1)-currsum);
currsum += r[i];
}
r[thecount-1] = max - currsum;
return r;
}
本文内容由网友自发贡献,版权归原作者所有,本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容,请联系:hwhale#tublm.com(使用前将#替换为@)