insert method

void insert(String key, Map<String, dynamic> data)

if(key already exist) count+1,also set data to newdata if(key not exist) if(not full) insert keyCount(data: data,count: 1) if(full) insert keyCount(data: data,count: minUseCount+1)

Implementation

void insert(String key,Map<String,dynamic> data){
  if(map.containsKey(key)){ //// add count by 1 then bubble down
    int i=1;
    while(array[i]!=key){i++;}
    map[key]!.add1();
    map[array[i]]!.data=data;
    bubbledown(i);
  }else if(array.length<lmt){ /// add to bottom then bubble up
    map[key]=keyCount(data: data);
    int i=array.length;
    array.add(key);
    bubbleup(i);
  }else{
    final oldKey=array[1];
    map[key]=keyCount(data: data,count: map[oldKey]!.count+1);
    array[1]=key;
    map.remove(oldKey);
    bubbledown(1);
  }
}