1 回答出現(xiàn)問題：Uncaught TypeError: SquareFactory.prototype.make is not a function 是為什么

1 回答為什么提示 Uncaught TypeError: game.fixed is not a function？？？？？

1 回答總是說down is a not function

6 回答 cur = SquareFactory.prototype.make(2, 2);

1 回答ReferenceError: Square is not defined