Learning Golang: How to get timestamp

Golang tutorial: How to get a timestamp, specific code examples are required

Timestamp (timestamp) refers to a certain moment relative to a fixed starting time point The number of elapsed seconds or milliseconds. In software development, obtaining timestamps is a common operation and can be used to record the sequence of events, calculate time intervals, and so on. In Golang, getting a timestamp is very simple. This article will introduce how to get a timestamp in Golang and give specific code examples.

In Golang, obtaining timestamps mainly depends on the time package. The time package provides a series of functions and types for processing time, including obtaining timestamps. Below we will introduce code examples on how to obtain the current timestamp and the specified timestamp respectively.

The code example to obtain the current timestamp is as follows:

package main

import (
    "fmt"
    "time"
)

func main() {
    timestamp := time.Now().Unix()
    fmt.Println("当前时间戳：", timestamp)
}

In the above code, we first imported the "fmt" and "time" packages. Next, the current time is obtained through the time.Now() function, and then the Unix() function is called to obtain the timestamp of the current time, and the timestamp is assigned to the variable timestamp. Finally, the timestamp is output to the console through the fmt.Println() function.

Run the program through the above code, you will get an output similar to the following:

当前时间戳： 1625737289

The number in the above output is the current timestamp.

In addition to getting the current timestamp, sometimes we also need to get the timestamp of the specified time. Here is a code example for obtaining a specified timestamp:

package main

import (
    "fmt"
    "time"
)

func main() {
    // 指定时间
    t := time.Date(2022, time.January, 1, 0, 0, 0, 0, time.UTC)
    // 获取时间戳
    timestamp := t.Unix()
    fmt.Println("指定时间的时间戳：", timestamp)
}

In the above code, we also imported the "fmt" and "time" packages first. Then, a time.Time type variable t is created through the time.Date() function, which is January 1, 2022. 0:00:00. Then, the timestamp of the specified time is obtained through the t.Unix() function, and the timestamp is assigned to the variable timestamp. Finally, the timestamp is output to the console through the fmt.Println() function.

Run the program through the above code, you will get an output similar to the following:

指定时间的时间戳： 1640995200

The number in the above output is the timestamp of 0:00:00 on January 1, 2022 .

Through the above code examples, we can see that getting timestamps in Golang is very simple. The timestamp of the current time can be obtained by using the time.Now().Unix() function, and the time of the specified time can be created using the time.Date() function. A variable of type Time, and its corresponding timestamp can be obtained through the variable's Unix() function.

In summary, knowing how to obtain timestamps is crucial for Golang development. This article introduces how to get the current timestamp and the timestamp of the specified time in Golang through specific code examples. Hope this tutorial can be helpful to everyone!

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