编辑代码

let youxi = {
    name: "狼人杀",
    [Symbol("fayan")]: function () {
        console.log("我可以发言")
    },
    [Symbol("zibao")]: function () {
        console.log("我可以自爆")
    }
}
let methods = {
    up: Symbol(),
    down: Symbol()
}
youxi[methods.up] = function () {
    console.log("!@!@")
}
youxi[methods.down] = function () {
    console.log("我可以快速下降")
}
console.log(youxi)