how to get current time
时间: 2024-05-15 22:17:38 浏览: 8
你可以使用编程语言中的内置函数或类来获取当前时间。例如,在Python中,你可以使用datetime模块的datetime类来获取当前时间。代码示例如下:
```python
import datetime
now = datetime.datetime.now()
print("Current time is: ", now)
```
输出结果为:
```
Current time is: 2021-09-16 14:25:36.231601
```
在其他编程语言中,获取当前时间的方式可能略有不同,但一般都提供了类似的内置函数或类。
相关问题
js get current time
To get the current time in JavaScript, you can use the `Date` object and its `getTime()` method. This method returns the number of milliseconds since the Unix epoch (January 1, 1970).
Here is an example of how you can use it:
```
const currentTime = new Date().getTime();
```
If you want to format the time in a specific way, you can use the `toString()` method or one of the many libraries available for formatting dates in JavaScript.
For example, to get the current time in the format "hh:mm:ss", you can do the following:
```
const currentTime = new Date();
const timeString = currentTime.toString();
const formattedTime = timeString.slice(16, 24);
```
This will give you a string like "10:45:30" for the current time. You can also use template literals to make the formatting more concise:
```
const currentTime = new Date();
const formattedTime = `${currentTime.getHours()}:${currentTime.getMinutes()}:${currentTime.getSeconds()}`;
```
There are many other methods available on the `Date` object that allow you to get specific parts of the date and time, such as the year, month, day, etc. You can find more information about these methods in the documentation for the `Date` object: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date
get current time point with steady_clock::time_point
As an AI language model, I do not have access to the system time of the device I am running on. However, here is an example of how to get the current time point using steady_clock::time_point in C++:
```
#include <chrono>
int main() {
// Get the current time point using steady clock
std::chrono::steady_clock::time_point now = std::chrono::steady_clock::now();
// Print the time point in milliseconds
std::cout << "Current time point: " << std::chrono::duration_cast<std::chrono::milliseconds>(now.time_since_epoch()).count() << " ms\n";
return 0;
}
```
This code uses the steady_clock::now() function to get the current time point, and then converts it to milliseconds with duration_cast. The time point is printed to the console. Note that the steady clock is used to measure time intervals that are not subject to system clock adjustments.