小编bea*_*own的帖子

当我保存playingBoard数组时，save正确打印它，但是当我尝试导入用save创build 的文件时import，我得到奇怪的输出 - 空格被删除并替换为1s 没有明显的逻辑。（下面提供了示例）

最小可重现示例：

#include <iostream>
#include <fstream>

class Board
{
public:
  char playingBoard[9][9];
  
  Board()
  {
    for (unsigned char i = 0; i < 9; ++i)
      for (unsigned char j = 0; j < 9; ++j)
        playingBoard[i][j] = ' ';
  }

  bool import(std::string filename)
  {
    std::ifstream ifs {filename};
    if (!ifs.is_open())
      return false;

    for (unsigned char i = 0; i < 9; ++i) {
      for (unsigned char j = …