wxss selectors include element selectors, class selectors, ID selectors, pseudo-class selectors, child element selectors, attribute selectors, descendant selectors and wildcard selectors. Detailed introduction: 1. Element selector, use the element name as the selector to select matching elements, use the "view" selector to select all "view" components; 2. Class selector, use the class name as the selector to select For elements with a specific class name, use the ".classname" selector to select elements with the ".classname" class name, etc.
The operating system for this tutorial: Windows 10 system, DELL G3 computer.
In the development of mini programs, WXSS (WeiXin Style Sheets) is a style sheet language similar to CSS, used to describe the interface style of mini programs. WXSS selectors are used to select and locate page elements that need to be styled. The following are some common WXSS selectors:
1. Element Selector: Use the element name as the selector to select matching elements. For example, use the `view` selector to select all `view` components.
2. Class Selector: Use the class name as the selector to select elements with a specific class name. For example, use the `.classname` selector to select elements with a `.classname` class name.
3. ID Selector: Use the ID of the element as the selector to select elements with a specific ID. For example, use the `#idname` selector to select elements with the `idname` ID.
4. Pseudo-class Selector: Pseudo-class selector is used to select a specific state or position of an element. For example, use the `:hover` selector to select the mouse-over state of an element.
5. Child Selector: Use `>` to separate two selectors, indicating that the direct child element of the first selector is selected. For example, use the `.container > .item` selector to select the direct child element `.item` under the `.container` element.
6. Attribute Selector: Use the attribute value of the element as the selector to select elements with specific attribute values. For example, use the `[attribute=value]` selector to select elements with a specific attribute value.
7. Descendant Selector: Separate two selectors with a space to select the descendant elements of the first selector. For example, use the `.container .item` selector to select all `.item` elements within the `.container` element.
8. Universal Selector: Use `*` as the selector to select all elements. For example, use the `*` selector to select all elements on the page.
It should be noted that the use of WXSS selectors is similar to CSS selectors, but there are some minor differences. In WXSS, the way selectors are written is slightly different from that in CSS, but the basic selector concepts and functions are similar.
In actual development, according to specific needs and interface structure, choose the appropriate WXSS selector to select and style page elements. By flexibly using selectors, you can achieve style customization and layout control of the mini program interface.
In summary, common WXSS selectors include element selectors, class selectors, ID selectors, pseudo-class selectors, child element selectors, attribute selectors, descendant selectors and wildcard selectors . Developers can choose appropriate selectors to select and style page elements based on the needs and interface structure of the mini program. I hope the above answer is helpful to you, if you have any other questions, please feel free to let me know.
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