进行页面加载时间的测量编码（仅记录个人学习内容）

# @Description :性能测量：看板或者单图页面加载的速度测量[Page loading speed measurement]
import requests  
import time  
  
def measure_page_load_time(url):  
    try:  
        start_time = time.perf_counter()  # 更精确的时间测量  
        headers = {'User-Agent': 'My Custom Browser'}  # 添加User-Agent  
        response = requests.get(url, headers=headers, timeout=5)  # 设置超时时间  
        end_time = time.perf_counter()  
        load_time = end_time - start_time  
  
        if response.status_code == 200:  
            print(f"页面 {url} 加载时间: {load_time:.4f} 秒")  # 格式化输出时间  
        else:  
            print(f"页面 {url} 无法访问，状态码: {response.status_code}")  
    except requests.exceptions.RequestException as e:  
        print(f"请求页面 {url} 时发生错误: {e}")  
  
url = "http://example.com"  # 替换为你想测试的网页  
measure_page_load_time(url)