Excel Sheet Column Title 本题收获: 1.由int型转换为整型(string),如何转化, res = 'A'+(n-1)%26和之前由A-z转化为十进制相反,res = s[i]-'A'+1.(为什么有+1,-1还有点迷糊,貌似是十进制是0-9,26进制是) 2.十进制到26进制转化 题目: Given a positive integer, return its corresponding column title as appear in an Excel shee…