针对本地存取问题 自己写的一个公用方法

 //存本地缓存
 function setLocal(name,val){
     var strStorage = localStorage.getItem("storageData");
     var arrStorage = JSON.parse(strStorage);
     var objStorage = {};
     objStorage.name = name;
     objStorage.val=val;
     if(arrStorage instanceof Array){
         if (arrStorage.length>0&&arrStorage!=null){
            var hasin = false; 
            for(var arr=0;arr<arrStorage.length;arr++){
                if(name==arrStorage[arr].name){
                   objStorage = arrStorage.splice(arr,1,objStorage);
                   hasin = true; 
                }
            }
            if(hasin == false){
                arrStorage.push(objStorage);
            }
        }
     }else{
         arrStorage=[];
         arrStorage.push(objStorage);
     }
    
     localStorage.setItem("storageData",JSON.stringify(arrStorage));
 }
 
 
 //取本地缓存
 function getLocal(name){
    var strStorage = localStorage.getItem("storageData");
    var arrStorage = JSON.parse(strStorage);
    if (arrStorage!=null&&arrStorage.length>0){
        var needStr="";
        for(var arr=0;arr<arrStorage.length;arr++){
            if(name==arrStorage[arr].name){
               needStr =arrStorage[arr].val;
               return needStr;
            }
        }
        return needStr;
    }
}