leetcode 6

Posted 2021-07-04 东东就是我

class Solution:
    def convert(self, s: str, numRows: int) -> str:
        if numRows==1:
            return s
        else:
            res=['']*numRows
            find=0
            fuhao=0
            for num in s:
                res[find]+=num
                if find==0:
                    fuhao=0
                if find==numRows-1:
                    fuhao=1
                if fuhao==0:
                    find+=1
                else:
                    find-=1
            result=''
            for r in res:
                result+=r
            return result