摘要:
leetcode 逆波兰式求解 Evaluate the value of an arithmetic expression in Reverse Polish Notation. Valid operators are+,-,*,/. Each operand may be an integer 阅读全文
摘要:
第一题 Given a binary tree, find its minimum depth.The minimum depth is the number of nodes along the shortest path from the root node down to the neares 阅读全文
摘要:
有个问题一直困扰着我,就是在windows下,使用命令行登录mymql时,得cd进mysql的\bin目录下。但我已经将mysql的\bin加入了环境变量,似乎不起作用。 mysql 不允许创建表名全为数字的表 开启mysql 服务: net start server 关闭mysql 服务:net 阅读全文