Draw an arrow, each line transformed according to keypoint parameters.
画一个箭头，每一行转换参数，根据关键点。
Instead if we want this pointer to represent the address of something in as much as it points at that address let's just draw an arrow.
如果我们想要让这个指针表示，数据的地址，它指向的地址，我用一个箭头表示。
Instead if we want this pointer to represent the address of something in as much as it points at that address let's just draw an arrow.
如果我们想要让这个指针表示，数据的地址，它指向的地址，我用一个箭头表示。
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