1906. 寻找比周围都大的点

import copy
class Solution:
    """
    @param grid: a matrix
    @return: Find all points that are strictly larger than their neighbors
    """
    def highpoints(self, grid):
        cllist = copy.deepcopy(grid);
        rows = len(grid);
        colms = len(grid[0])
        for item in range(0,rows):
            for valus in range(0,colms):
                flg = True;
                if  item-1 >= 0:
                    if valus-1 >= 0:
                        if grid[item-1][valus-1] >= grid[item][valus]:
                            flg = False;
                    if grid[item-1][valus] >= grid[item][valus]:
                        flg = False;
                    if valus+1 <colms:
                        if grid[item-1][valus+1] >= grid[item][valus]:
                            flg = False;
                if  valus-1 >= 0:
                    if grid[item][valus-1] >= grid[item][valus]:
                        flg = False;
                if valus + 1 < colms:
                    if grid[item][valus+1] >= grid[item][valus]:
                        flg = False;
                if item+1 < rows:
                    if valus-1 >= 0:
                        if grid[item+1][valus-1] >= grid[item][valus]:
                            flg = False;
                    if grid[item+1][valus] >= grid[item][valus]:
                        flg = False;
                    if valus+1 < colms:
                        if grid[item+1][valus+1] >= grid[item][valus]:
                            flg = False;
                cllist[item][valus] = 1 if flg else 0;
        return cllist;