一句话核心价值点：用不到30行的VBA+SQL，把函数筛不了的复杂数据轻松拎出来，让零基础也能像老手一样秒查信息。 办公室常遇到：2026年销售表分华东、华北两张，要找出“华东且销量>5000且客户等级=A”的记录，用函数得嵌套一堆IF+INDEX+MATCH，改个条件就崩。

A comprehensive credit risk modeling system analyzing 2.25 million loans to predict defaults with 73.77% accuracy. Built using machine learning, SQL analytics, Tableau dashboards, and Excel VBA ...

TIOBE Index for February 2026: Top 10 Most Popular Programming Languages Your email has been sent February’s TIOBE Index shows a leaderboard that looks steady at first glance, but small shifts beneath ...

This repository contains my personal solutions for the labs and problem sets from Harvard University's CS50 course, also known as "Introduction to Computer Science". The course covers a broad range of ...