swift Array sorting

1.Array sorting

  var list = Array<RateModel>() //初始化   加元素部分省略
  list = list.sort({(site1: SiteModel, site2: SiteModel) -> Bool in
            if(site1.count != site2.count){
                return site1.count > site2.count
            } else {
                return site1.id > site2.id
            }
        })

2. NSMutableArray sorting

var list:NSMutableArray = NSMutableArray() //初始化   加元素部分省略
list.sortUsingComparator({
                    (s1:AnyObject!,s2:AnyObject!)->NSComparisonResult in
                    let mi1 = s1 as! SiteModel
                    let mi2 = s2 as! SiteModel
                    if mi1.name < mi2.name{
                        return NSComparisonResult.OrderedAscending
                    }else{  
                        return NSComparisonResult.OrderedDescending  
                    }
            })

By the way, when sorting English strings, we know that the rules are the order of 26 English letters. What is the basis for sorting Chinese? is the unicode code value.