拉萨市网站建设_网站建设公司_定制开发_seo优化

function createProxy(value=0){return new Proxy({},{get(target,prop){if(prop===Symbol.toPrimitive){return ()=>value;}else{return createProxy(value+Number(prop))}}})
}const add=createProxy()
console.log(add[0][2]+4)//6
console.log(add[0][2][5]+4)//11