一、iso8601格式转换成DateTime对象 这里主要用到datetime的静态方法static datetime ParseExact(string s, string format, System.IFormatProvider provider) 代码如下: $dateTimeStr = ‘20141231T23:59:59’ $format = ‘yyyyMMddTHH:mm:ss’ $formatProvider = [Globalization.CultureInfo]::In