非比较排序，适用于整数且范围不大的情况：
Osmond Chia,Business reporter
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It’s also possible to abandon the threshold matrix altogether and instead calculate a value for every pixel coordinate at runtime. If the function is simple enough this can be a good and efficient way to break up patterns and create interesting textures.
* @param arr 数组
Что думаешь? Оцени!