#腾讯8.17笔试第一题 def jieya(ans):     left_index = 0     right_index = 0     shu_index = 0     # HG[3|B[2|CA]]F     for i in range(len(ans)):         if ans[i] == '[':             left_index = i         elif ans[i] == ']':             right_index = i             break         elif ans[i] == '|':         ...