随机数算法
var rand = (function () {
var seed = new Date().getTime()
function rnd(){
seed = ( seed * 9301 + 49297 ) % 233280
return seed / ( 233280.0 )
}
return function (number) {
return Math.ceil(rnd() * number)
}
})()
// 测试
for (var i = 0; i < 100; i++) {
console.log(rand(100))
}