How to set up bootstrap form

Bootstrap provides a series of steps to set up a form, including loading a framework, creating a form, adding form elements, setting styles, adding validation, and processing form data. Among them, setting the form style includes: using the .form-control class style to apply to all form elements; using the .input-group class style to group elements such as input boxes; and using the .form-group class style to group related form elements.

How to set up a form using Bootstrap

Bootstrap is a popular front-end framework that provides a range of built-in styles and components that can help you create beautiful and practical web pages easily. In this article, we will explain how to set up a form using Bootstrap.

Step 1: Load Bootstrap

First, you need to load Bootstrap CSS and JavaScript files in your webpage.

 <code class="html"><link rel="stylesheet" href="path/to/bootstrap.min.css"> <script src="path/to/bootstrap.min.js"></script></code>

Step 2: Create a Form

Create a form using the HTML <form></form> tag.

 <code class="html"><form action="/submit" method="post"> ... </form></code>

Step 3: Add form elements

In the <form></form> tag, you can add various form elements, including input boxes, selection boxes, radio buttons, check boxes, etc.

 <code class="html"><input type="text" name="name" placeholder="姓名"> <select name="gender"> <option value="male">男</option> <option value="female">女</option> </select> <input type="checkbox" name="terms" value="1"> <label for="terms">我同意条款</label></code>

Step 4: Set the form style

Bootstrap provides several different form style classes:

• .form-control : Applicable to all form elements
• .input-group : Used to group input boxes and other elements
• .form-group : used to group a group of related form elements

Step 5: Add Form Verification

Bootstrap provides a verification plugin that helps you verify form input.

 <code class="html"><script> // 为表单元素添加验证规则$(&#39;form&#39;).validate({ rules: { name: "required", gender: "required", terms: "required" } }); </script></code>

Step 6: Process the form data

When you submit a form, you can process form data using PHP, Node.js, or other backend languages.

 <code class="php"><?php if (isset($_POST[&#39;name&#39;]) && isset($_POST[&#39;gender&#39;]) && isset($_POST[&#39;terms&#39;])) { // 处理表单数据} ?></code>

Example

Here is an example form set using Bootstrap:

 <code class="html"><form action="/submit" method="post"> <div class="form-group"> <label for="name">姓名</label> <input type="text" class="form-control" name="name" placeholder="姓名"> </div> <div class="form-group"> <label for="gender">性别</label> <select class="form-control" name="gender"> <option value="male">男</option> <option value="female">女</option> </select> </div> <div class="form-group"> <label for="terms">我同意条款</label> <input type="checkbox" class="form-control" name="terms" value="1"> </div> <button type="submit" class="btn btn-primary">提交</button> </form></code>

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