珅泽教育CSP-J第一轮模拟考第十套 第 42 题
(4)(5) 处应填（ ）。
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0 <= nx or nx < n or 0 <= ny or ny < m, a[nx][ny] == '#'0 <= nx and nx < n and 0 <= ny and ny < m, a[nx][ny] != '#'0 <= nx or nx < n or 0 <= ny or ny < m, a[nx][ny] != '#'0 <= nx and nx < n and 0 <= ny and ny < m, a[nx][ny] == '#'