python报错AttributeError: 'Board' object has no attribute 'board_data'

Question

问题遇到的现象和发生背景

问题相关代码，请勿粘贴截图

"""board mode"""
class Board(object):
    def _init_(self):#用于类的初始化，此时不带参数，也可以def_init_(self,参数……)带多个参数，类似于C++中的构造函数
        self.board_data = [' ']*9#记录每个位置的棋子
        self.moveable_list = list(range(9))#list()将元组转化为列表
if __name__ == '__main__':
    #测试
    board=Board()
    print(board.board_data)
    print(board.moveable_list)

运行结果及报错内容

/Users/liushanyu/PycharmProjects/pythonProject/bin/python /Users/liushanyu/Desktop/pythonProject/main.py
Traceback (most recent call last):
File "/Users/liushanyu/Desktop/pythonProject/main.py", line 9, in
print(board.board_data)
AttributeError: 'Board' object has no attribute 'board_data'

Process finished with exit code 1

我的解答思路和尝试过的方法

我想要达到的结果

Answer 1

init前后都是俩下划线，表示类的初始化，望采纳！n