# Leetcode 1507. Reformat Date
給定"20th Oct 2052"格式回傳成"2052-10-20"格式

## 想法
這題目其實出的不好,基本上就兩種做法,一種就是把它切割再塞回去,或者是使用一些date的格式器轉換,所以沒有甚麼特殊技巧。

程式碼:

def reformatDate(self, date: str) -> str:
        month = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]
        date = date.split(" ")
        ans = []
        ans.append(date[2])
        tag = str(month.index(date[1])+1)
        if(len(tag)<2):
            tag = "0"+tag
        ans.append(tag)
        tag = ""
        for i in date[0]:
            if(i in ["1","2","3","4","5","6","7","8","9","0"]):
                tag+=i
            else:
                break
        if(len(tag)<2):
            tag = "0"+tag
        ans.append(tag)
        return "-".join(ans)