很多时候，bug数按相对代码行的百分比进行计算。
Many times, bugs are computed in terms of the percentage of the lines of code.
本文提供的代码是相对简单的、使用GD的图像处理算法。
The code presented here is a relatively simple image processing algorithm using GD.
修改模板来执行期望的内核代码相对也比较简单。
Modifying the template to execute the desired kernel code is relatively straightforward.
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