const _isSameSet = (s1, s2) => { // 补全代码 let arr1=Array.from(s1).sort((a,b)=>a.charCodeAt()-b.charCodeAt()) let arr2=Array.from(s2).sort((a,b)=>a.charCodeAt()-b.charCodeAt()) return JSON.stringify(arr1)===JSON.stringify(arr2) }