datetime-local
时间: 2023-11-30 21:40:08 浏览: 29
datetime-local是HTML5中的一种表单元素类型,用于输入日期和时间。但是在Firefox桌面浏览器中不支持该输入类型,需要使用polyfill进行兼容处理。如果想要在日期输入框中设置默认值,可以在input标签中使用value属性来设置。<<引用>> <<引用>>
--相关问题--:
1. datetime-local还有哪些浏览器不支持?
2. 如何使用polyfill进行datetime-local
相关问题
input type=datetime-local
<input type="datetime-local"> is an HTML input type that allows users to select both date and time values. It provides a graphical interface for selecting dates and times in a specific format.
When a user interacts with the input field, a date and time picker will be displayed, allowing them to choose a specific date and time. The selected value will be returned in the format specified by the input's attributes.
Here's an example of how you can use the `<input type="datetime-local">` in HTML:
```html
<label for="meeting-time">Choose a meeting date and time:</label>
<input type="datetime-local" id="meeting-time" name="meeting-time">
```
In this example, the `id` attribute is used to uniquely identify the input field, and the `name` attribute specifies the name of the input field when it is submitted to the server.
Please note that the availability and appearance of the date and time picker may vary depending on the user's device and browser.
string转换为datetime-local
可以使用Python中的datetime模块,使用datetime.strptime()方法将字符串转换为datetime对象,然后使用datetime.strftime()方法将datetime对象转换为指定格式的字符串。例如:
```python
from datetime import datetime
date_str = '2022-01-01T12:00'
datetime_obj = datetime.strptime(date_str, '%Y-%m-%dT%H:%M')
datetime_local_str = datetime_obj.strftime('%Y-%m-%dT%H:%M')
print(datetime_local_str) # '2022-01-01T12:00'
```
请注意,此处的格式字符串 '%Y-%m-%dT%H:%M' 对应的是 datetime-local 输入框的默认格式。如果你使用不同格式的输入框,请修改格式字符串。