注意：生产代码可以处理对数组内不存在的属性的请求。
Note: Production code should handle requests for attributes that do not exist in the array.
我怎样才能哪个单元内的二维数组我雪碧?。
How can I get which cell within the two-dimensional array my sprite is in?
我怎样才能哪个单元内的二维数组我雪碧?。
How can I get which cell within the two-dimensional array my sprite is in?
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