这两个月工作巨多,直到今天才有时间写点骚东西。

可是要写点什么比较好呢?这时候看到了隔壁桌面上放着一张福彩,我脑子里有画面了。(所以这位赌狗不是我,我不买彩票)

为了方便以后支持更多的彩票,直接搞个类

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class Gamble {
static dualColor(red: number = 6, blue: number = 1) {
const reds: [number, number] = [1, 33];
const blues: [number, number] = [1, 16];

return [this.randomVal(reds, red), this.randomVal(blues, blue)];
}

private static randomVal(
fromto: number[],
total: number,
temp: number[] = [],
): number[] {
const [head, ...body] = (!temp.length
? [...Array(fromto[1]).keys()]
.map(item => item + 1)
.splice(fromto[0] - 1)
: fromto
).sort(() => Math.random() - 0.5);
return !total
? temp
: this.randomVal(body, total - 1, temp.concat(head));
}
}