ExpirationSecuritySettings

public int? Decimals { get; set; }

value = expirationSecuritySettings.Decimals
expirationSecuritySettings.Decimals = value

昏迷后价格的位数。

public decimal? PriceStep { get; set; }

value = expirationSecuritySettings.PriceStep
expirationSecuritySettings.PriceStep = value

最低价阶.

public decimal? VolumeStep { get; set; }

value = expirationSecuritySettings.VolumeStep
expirationSecuritySettings.VolumeStep = value

最小量步数.