# # 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可 # # # @param s string字符串 # @return bool布尔型 # class Solution: def isValid(self, s: str) -> bool: # write code here seq = ["(", "{", "["] ret = list() if len(s) < 1: return False try: fo...