varsalesOffices={};salesOffices.clientList=[];salesOffices.listen=function(key,fn){if(!this.clientList[key]){this.clientList[key]=[];}//我想問下這個this.clientList[key].push(fn)的表現形式是什么,//this.clientList[key]這是個數組然后往push，會成什么結果??//是這樣的嗎["squareMeter100",fucntion(){},"squareMeter80",fucntion(){},]returnthis.clientList[key].push(fn);}salesOffices.listen("squareMeter100",function(price){console.log("價格="+price);});salesOffices.listen("squareMeter80",function(price){console.log("價格="+price);});salesOffices.trigger=function(){varkey=Array.prototype.shift.call(arguments),fns=this.clientList[key];if(!fns||fns.length===0){returnfalse;}for(vari=0,fn;fn=fns[i++];){fn.apply(this,arguments);}}salesOffices.trigger("squareMeter100",200);salesOffices.trigger("squareMeter80",100);