楼主二面代码题解 var getItem = function(obj, way){      let ways = way.split('/');      if(ways.length == 1){    console.log(obj[ways[0]]);     }     else{         for(var k_p in ways){            if(obj[ways[k_p]] instanceof Object || obj[ways[k_p]] instanceof Array){                   obj = obj[ways[k_p]];                   continue;                 }            else                 console.log(obj[ways[k_p]]);                } } }