What are the web standard controls?

Web standard controls include text input boxes, multi-line text boxes, drop-down list boxes, radio buttons, check boxes, buttons, picture buttons, file upload boxes, labels, progress bars, sliders, and date selections. Devices and so on. Detailed introduction: 1. Text input box, used to receive text information input by the user. You can set the size, maximum length, default value and other attributes of the input box; 2. Multi-line text box, similar to the text input box, but can receive multiple Line text, you can set the number of lines and columns of the text box; 3. Drop-down list box, used to provide a set of options for the user to choose, etc.

Operating system for this tutorial: Windows 10 system, Dell G3 computer.

Web standard controls refer to some standardized controls commonly used in Web development, which can provide a consistent user interface and interactive experience. These controls are developed based on web technologies such as HTML, CSS and JavaScript and can run on a variety of browsers and devices. Some common Web standard controls will be introduced below.

1. Text input box (Text Input): used to receive text information entered by the user. You can set the size, maximum length, default value and other attributes of the input box.

2. Multi-line text box (Text Area): similar to the text input box, but can receive multiple lines of text. You can set the number of rows and columns of the text box.

3. Drop-down list box (Select): used to provide a set of options for users to select. You can set properties such as default options, disabled options, and multiple selections.

4. Radio Button: Used to provide multiple options for the user to choose, but only one of them can be selected. You can set properties such as default options and disabled options.

5. Checkbox: Used to provide multiple options for users to choose from, and multiple options can be selected. You can set properties such as default options and disabled options.

6. Button: used to trigger an operation. You can set the text, style, click event and other properties of the button.

7. Image Button: Similar to a button, but uses a picture as the background of the button. You can set the button's style, click event and other attributes.

8. File upload box (File Input): used to select and upload files. You can set attributes such as file type and maximum file size.

9. Label: The name or description used to identify other controls. It can be associated with other controls so that when the label is clicked, the corresponding control can be focused.

10. Progress Bar: Used to display the progress of a task. You can set the current value, maximum value and other properties of the progress bar.

11. Slider: Used to select a value within a range. You can set the minimum value, maximum value, step size and other properties of the slider.

12. Date Picker: used to select dates. You can set the date format, minimum date, maximum date and other attributes.

The above are some common Web standard controls, which can be widely used in Web development. By using these controls, you can provide a consistent user interface and interactive experience, while also reducing development effort and complexity. In actual development, appropriate controls can be selected and used according to specific needs.

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