c#中如何把dataTime转换为string？

Question

dataTime提取的时间为
2009-08-33 8:32:2
如何把它转换为
200908338322

Answer 1

方法一：Convert.ToDateTime(string)
string格式有要求，必须是yyyy-MM-dd hh:mm:ss

方法二：Convert.ToDateTime(string, IFormatProvider)
DateTime dt;
DateTimeFormatInfo dtFormat = new System.GlobalizationDateTimeFormatInfo();
dtFormat.ShortDatePattern = "yyyy/MM/dd";
dt = Convert.ToDateTime("2011/05/26", dtFormat);

方法三：DateTime.ParseExact()
string dateString = "20110526";
DateTime dt = DateTime.ParseExact(dateString, "yyyyMMdd", System.Globalization.CultureInfo.CurrentCulture);
或者
DateTime dt = DateTime.ParseExact(dateString, "yyyyMMdd", System.Globalization.CultureInfo.InvariantCulture);

Answer 2

DateTime dt = Convert.ToDateTime("2009-08-33 8:32:2");
dt.ToString("yyyyMMddHHmmss");

Answer 3

System.DateTime.Now.ToString("yyyyMMddHHmmss");本回答被提问者采纳

Answer 4

ToString("yyyyMMddHHmmss")