第一反应就是遍历：

# -*- coding:utf-8-*-
classSolution:
    # array 二维列表
    def Find(self, target, array):
        # write code here
        ifarray == [[]]:
            returnFalse
        fori in range(len(array)):
            forj in range(len(array[i])):
                ifarray[i][j] == target:
                    returnTrue
        returnFalse

or

# -*- coding:utf-8-*-
classSolution:
    # array 二维列表
    def Find(self, target, array):
        # write code here
        ifarray == [[]]:
            returnFalse
        fori in array:
            forj in i:
                ifj == target:
                    returnTrue
        returnFalse