C#中字符串转日期类型

1，yyyyMMdd

DateTime date = DateTime.ParseExact("", "yyyyMMdd", System.Globalization.CultureInfo.CurrentCulture);

2，ddMMyyyy

DateTime date = DateTime.ParseExact("15/04/2019", "dd/MM/yyyy", System.Globalization.CultureInfo.GetCultureInfo("en-US"));