js html传参

<!-- HTML -->
<a href="page.html?param1=value1&param2=value2">Go to Page</a>

// JavaScript
const urlParams = new URLSearchParams(window.location.search);
const param1 = urlParams.get('param1');
const param2 = urlParams.get('param2');
console.log(param1, param2); // 输出: value1 value2

<!-- HTML -->
<form action="/submit" method="post">
  <input type="text" name="username" />
  <input type="password" name="password" />
  <button type="submit">Submit</button>
</form>

// JavaScript
window.globalVar = 'someValue';

// 设置数据
localStorage.setItem('key', 'value');

// 获取数据
const value = localStorage.getItem('key');
console.log(value); // 输出: value

// Fetch API
fetch('/api/data?param1=value1')
  .then(response => response.json())
  .then(data => console.log(data));

// 发送消息
window.postMessage('Hello from parent', 'https://example.com');

// 接收消息
window.addEventListener('message', event => {
  console.log(event.data); // 输出: Hello from parent
});