Shulou(Shulou.com)06/03 Report--

This article mainly explains "how to use now to expand the time toolbox of go". The content of the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how to use now to expand go's time toolbox".

Golang is not a high-level language like Candleman Java, which has rich syntax sugars for developers to call easily. So this gives rise to a lot of open source components, and the use of these third-party components can help us step in a lot less holes in the development process.

Time processing is a problem for all languages. Parse converts date types based on strings, and tostring () converts date types into customized strings.

In the process of practical use, there is an uncomfortable way to use parse.

Upper source code

Time1, _: = time.Parse ("2006-01-02", 2020-02-22 ") fmt.Println (time1) time2, _: = time.Parse (" 2006-01-02 "," 2020-02-23 ") fmt.Println (time2)

Different string formats need to be configured with different templates in order to parse normally, is there a way similar to Datetime.parse ("date string") in C #, the general input format can be recognized.

T, _: = now.Parse ("2017-01-02") fmt.Println (t) T2, _: = now.Parse ("2017-10-02 17:30") fmt.Println (T2)

Very convenient, do not have to remember the strange date of 15:04:05 2006-01-02 formatted, really do not understand. Now that YYYY-MM-dd is rampant, it is hard to understand why the author should design such a strange date format.

This is just a feature of the now toolkit, and there are many other additional features to be explored.

Basic use of import "github.com/jinzhu/now" time.Now () / / 2013-11-18 17 time.Now () / / 2013-11-18 17:51:00 Monnow.BeginningOfHour () / / 2013-11-18 17:00:00 Monnow.BeginningOfDay () / / 2013-11-18 00:00:00 Monnow.BeginningOfWeek () / / 2013-11-17 00:00 : 00 Sunnow.BeginningOfMonth () / / 2013-11-01 00:00:00 Frinow.BeginningOfQuarter () / / 2013-10-01 00:00:00 Tuenow.BeginningOfYear () / / 2013-01-01 00:00:00 Tue sets the starting number of days per week

It is customary to use Sunday as the first day of the week abroad, while Monday is used as the first day of the week in China. The setup of now is very simple, one line of code is enough.

Now.WeekStartDay = time.Monday / / Set Monday as first day, default is Sundaynow.BeginningOfWeek () / / 2013-11-18 00:00:00 Mon

At a time like this, every day of the week becomes the 18th.

"is there any easier way? I don't want to configure it every time. I may forget it sometimes."

"of course."

Now.Monday () / 2013-11-18 00:00:00 Monnow.Sunday () / / 2013-11-24 00:00:00 Sun (Next Sunday) now.EndOfSunday () / / 2013-11-24 23 purse 59.999999999 Sun (End of next Sunday)

Directly .Monday () .Sunday () is fine.

EndOfSunday () gets the last second on Sunday, at the start date of the query condition.

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