如何在使用fetch的post/get请求中使用await？

async function postData(url, data) {
  try {
    const response = await fetch(url, {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json'
      },
      body: JSON.stringify(data)
    });
    const result = await response.json();
    return result;
  } catch (error) {
    console.error('Error:', error);
    throw error;
  }
}

// 调用postData函数
postData('https://api.example.com/post', { name: 'John', age: 30 })
  .then(data => {
    console.log('Response:', data);
  })
  .catch(error => {
    console.error('Error:', error);
  });

async function getData(url) {
  try {
    const response = await fetch(url);
    const result = await response.json();
    return result;
  } catch (error) {
    console.error('Error:', error);
    throw error;
  }
}

// 调用getData函数
getData('https://api.example.com/data')
  .then(data => {
    console.log('Response:', data);
  })
  .catch(error => {
    console.error('Error:', error);
  });