wx.onInteractiveStorageModified(this.changeFriendSuccess);
  
 
changeFriendSuccess:function(key){
    key=Number(key);
    if(key==1)
    {
        GameTools.toastMessage(" Success key ="+key);
    }
},

在modifyFriendInteractiveStorage JSServer校验失败时，

changeFriendSuccess 也被调用了