专家您好，输入“upSh”时出现语法错误，请建议更正

Question

isRes = high[length] > upper
isSup = low[length] < lower
if isRes and isSup
upSh = high[length] - math.max(open[length]), close[length])
downSh = math.max(open[length]), close[length]) - low[length]
isRes := isRes and upSh > dwSh
isSup := isSup and dwSh > upSh
os := isRes ? 0 : isSup ? 1 : -1

请建议更正输入“upSh”时的语法错误

Answer 1

应该是您使用的变量

dwSh

中的拼写错误 - 因为您将其声明为

downSh