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
