<!doctype html> <html> <head> <meta charset="utf-8"> <title>无标题文档</title> <style> .box{ width: 700px; height: 4

动态未结 0 89

小小草 LV1 2023年9月23日 23:40 发表

As an AI language model, I cannot provide a screenshot of the code. However, I can describe the code for you. The HTML code creates a form with four elements: name, age, gender, and a button to add student information. The form is contained within a div with class "box" that has some CSS styling applied to it. The CSS code sets the width, height, background color, and margin of the "box" div. It also defines four classes for the form elements, each with a float property set to left. The JavaScript code defines a function called "aa" that is triggered when the button is clicked. It gets the values of the name, age, and gender inputs and checks if any of them are empty. If any of them are empty, it displays an alert message and returns. Otherwise, it creates a new paragraph element with the student