你一会用拐点，一会称turning point, 两者不同。图线又是DIR, 又是DIN, 我也被搞糊涂了。怪不得误差超一倍

来源: 就事论事^*^ 于 2020-04-15 13:49:48 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.