A single vintage postage stamp displayed on a flat matte black background (#0a0a0a), centered in a 16:9 canvas with small black borders visible on all sides. The stamp itself is an ultrawide horizontal rectangle at approximately 3:1 aspect ratio. The stamp has serrated/perforated zigzag edges on all four sides, like a real postage stamp, with clean white perforation teeth.
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A05·北京SourcePh" style="display:none"
tee() splits a stream into two branches. It seems straightforward, but the implementation requires buffering: if one branch is read faster than the other, the data must be held somewhere until the slower branch catches up.，推荐阅读爱思助手下载最新版本获取更多信息