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如何实现 比较数组中的值与特定值相同 然后删除数组中的这个值
数组只能删除整个行或者整个列等(如果考虑z轴,其实就是删除一个面),所以没法单独删除一个值,只能把它设置成一个你认定为空的值,间接表示它已被删除