解题思路

统计R（右），L（左），U（上）和 D（下）的步数，R与L相同，U和D相同即可

代码

class Solution:
    def judgeCircle(self, moves: str) -> bool:
        hash = {i:0 for i in {"U","D","L","R"}}
        for i in moves:
            hash["%s"%i] += 1
        if hash["U"]==hash["D"] and hash["L"]==hash["R"]:
            return True
        else:
            return False