如何在Swift 3中将CoreData Date转换为DateTime

Question

我有CoreDatamyDate = date,Entity列并返回输出:

let mydate = coreDataValues[0].myDate!
print(mydate)

OUTPUT == 2017-02-01 12:45:40 +0000 

我想转换mydate成datetime下面的例子;

2017-12-20-23-59-59

我该怎么做 ？

泰

Answer 1

你可以这样做:

var dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd-HH-mm-ss"
var date = dateFormatter.string(from: mydate as Date)
print(date)

OUTPUT = 2017-02-01-18-10-01