By swapping out the standard grid view for the buffered view, the application performed as it should by only changing a line or two of code.
通过将标准网格视图换成缓存视图，只改了一两行代码，程序运行如常。
If we specify fully buffered or line buffered, buf and size can optionally specify a buffer and its size.
如果我们指定完全缓存或者行缓存，buf和size可选的指定一个buffer和它的大小。
If we specify fully buffered or line buffered, buf and size can optionally specify a buffer and its size.
如果我们指定完全缓存或者行缓存，buf和size可选的指定一个buffer和它的大小。
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