Excel is my database, Python is my brain.

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Turn Excel into a lightweight data-science tool for cleaning datasets, standardizing dates, visualizing clusters, and analyzing keywords.

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很多留学生花了几个月时间在 LeetCode 上狂刷 SQL 题，把 Python 的 Pandas库背得滚瓜烂熟。但投递了几百份简历后发现，自己连第一轮的机器筛选都过不去。即便勉强拿到了面试，也会在 Case ...

The first component is the Market Data Gateway (or API Wrapper). This layer creates a persistent connection to the exchange's servers, translating raw 'JSON' or 'FIX' messages into clean Python data ...