[1.面向对象](1.%E9%9D%A2%E5%90%91%E5%AF%B9%E8%B1%A1.md) [2.JavaEE](2.Javaee.md) [4.数据库相关](4.%E6%95%B0%E6%8D%AE%E5%BA%93%E7%9B%B8%E5%85%B3.md) [5.git版本管理](5.git%E5%91%BD%E4%BB%A4.md) [7.一些问题解决](7.%E4%B8%80%E4%BA%9B%E9%97%AE%E9%A2%98%E8%A7%A3%E5%86%B3.md)