##### aiohttp.客户端
- [[aiohttp.简单框架]]
- [[class aiohttp.ClientSession]] 客户端会话
- [[class aiohttp.ClientResponse]] 客户端响应
##### 示例
```python
# 异步请求
import asyncio
import time
import aiohttp
async def async_http():
# 协程
async with aiohttp.ClientSession() as session:
# 声明一个支持异步的上下文管理器客户端会话
res = await session.get('http://httpbin.org/delay/2') # 等待GET响应
print(f'当前时间：{time.ctime()}, status_code = {res.status}')
tasks = [async_http() for _ in range(5)] # 5个协程
start = time.time() # 开始时间
asyncio.run(asyncio.wait(tasks)) # 创建事件循环等待一组5个协程完成
print(f'aiohttp异步耗时：{time.time() - start}')
# 同步请求
import time
import requests
def main():
start = time.time()
for i in range(5):
res = requests.get('http://httpbin.org/delay/2')
print(f'当前时间：{time.ctime()}, status_code = {res.status_code}')
print(f'requests同步耗时：{time.time() - start}')
main()
```